Habit, Desire, and Sanctification: Christian Formation and the Embodied Person

Abstract

Christian traditions agree that believers are called to holiness and disagree substantially about how it comes about. This article examines the doctrine of sanctification with attention to a question that the classic controversies frequently obscured: what actually changes a person, and what role do bodily habit and formed desire play in that change? It begins with the biblical vocabulary, distinguishing the sense in which believers are already sanctified from the sense in which they are being sanctified, and works through the Pauline imperatives to put off and put on, the account of flesh and Spirit in Romans and Galatians, and the fruit of the Spirit as an organic rather than an achieved metaphor. It then traces the tradition's resources: Augustine on disordered love, which locates the operative variable in what a person wants rather than what they know; Aquinas on the virtues as stable dispositions formed by repeated action, together with the infused virtues that are given rather than acquired; the Reformation's insistence that sanctification follows justification and never grounds it; and the Wesleyan holiness tradition's expectation of substantial present transformation. The constructive argument is that formation is bodily, habitual, communal, and slow, that congregations consistently teach it as though it were principally cognitive, and that the practices the tradition developed are the means by which desire is actually reordered.

Research Question and Scope

How does the New Testament relate divine action and human effort in sanctification, what do the traditions of virtue, habit, and disordered love contribute to understanding how a person is actually changed, and what practices follow for congregations?

Method and Source Selection

The study is exegetical and historical-theological. It first establishes the biblical vocabulary and the principal Pauline and Johannine passages on sanctification, citing texts by book, chapter, and verse and noting the Greek where the interpretation turns on it. It attends particularly to passages where divine action and human effort appear together, since accounts drawing on only one side produce the characteristic distortions examined here.

The historical section describes the contributions of Augustine, Aquinas, the magisterial Reformers, and the Wesleyan holiness tradition, working from primary texts and standard scholarship. Positions are described in terms their holders would accept before assessment, and the genuine disagreements between traditions are marked rather than harmonized into a consensus that does not exist.

The article engages philosophical and theological work on habit and embodiment, and treats psychological literature on habit formation with deliberate caution: findings from that literature concern behavioural regularity rather than the reordering of loves, and the article does not treat them as establishing theological claims. No original empirical research was conducted.

1. The vocabulary: sanctified, being sanctified, holy

The word group behind sanctification in the New Testament is built on the root hagios, holy, and the associated verb hagiazo, to make holy or set apart. Its Old Testament background is cultic: things and people are holy by being set apart for God's use, and the tabernacle vessels are holy without any moral quality being attributed to them. This original sense of separation to God remains present in the New Testament usage and is frequently overlooked in discussions that treat sanctification as purely moral improvement.

The New Testament uses the language in two distinguishable ways, and confusing them produces a great deal of unnecessary difficulty. Believers are described as already sanctified: Paul addresses the Corinthians as those who are sanctified in Christ Jesus, called to be saints (1 Corinthians 1:2), and reminds them that they were washed, sanctified, and justified in the name of the Lord Jesus Christ and in the Spirit of our God (1 Corinthians 6:11). The verbs are past tense and the status is stated as accomplished.

Believers are equally described as being sanctified and as required to pursue holiness. This is the will of God, your sanctification (1 Thessalonians 4:3); pursue peace with everyone, and the holiness without which no one will see the Lord (Hebrews 12:14); let us cleanse ourselves from every defilement of body and of spirit, making holiness perfect in the fear of God (2 Corinthians 7:1). The same letters that state the accomplished status command the process.

The most economical account of this pattern is that believers are set apart for God definitively at conversion and are progressively conformed to what that setting-apart implies. The status is not achieved by the process and the process is not optional given the status. This is why Paul can address a badly behaved congregation as saints without irony: the term describes what God has done with them, and the letter that follows describes what remains to be worked out.

The corresponding language of transformation is organic rather than industrial. Believers are being transformed into the same image from one degree of glory to another (2 Corinthians 3:18); God is at work in you, enabling you both to will and to work for his good pleasure (Philippians 2:13); the goal is stated as being conformed to the image of his Son (Romans 8:29). The passive constructions are consistent and significant: the subject of the transforming is God.

2. Divine action and human effort held together

The New Testament places divine action and human effort in the same sentences with a regularity that resists any account privileging one. The clearest instance is Philippians 2:12-13: work out your own salvation with fear and trembling, for it is God who is at work in you, enabling you both to will and to work for his good pleasure. The imperative is given and the reason supplied is God's prior working, so that divine agency is the ground of the human effort rather than its alternative.

The same structure recurs. Paul describes himself as toiling and struggling with all the energy that he powerfully inspires within me (Colossians 1:29), which attributes the exertion to himself and its power to God in a single clause. Peter instructs believers to make every effort to support their faith with goodness, and goodness with knowledge, in a chain of eight items (2 Peter 1:5-7), immediately after stating that God's divine power has given us everything needed for life and godliness (2 Peter 1:3).

Two characteristic distortions arise from separating these. Quietism holds that since God does the work, human effort is at best unnecessary and at worst presumptuous, and it produces believers who wait for a transformation that the New Testament tells them to pursue. Moralism holds that since effort is commanded, transformation is achieved by trying harder, and it produces exhaustion, self-deception, or despair depending on the person's honesty about their progress.

The tradition's most useful formulation is that grace does not replace human agency but restores and empowers it. Augustine's account of the will's healing, Aquinas' distinction between what is given and what is acquired, and the Reformed language of the Spirit's efficacious work in the regenerate all attempt to state this. The traditions differ on the mechanism and agree that the believer genuinely acts and that the capacity to act comes from God.

A practical implication follows for how congregations teach. Exhortation without an account of enabling grace produces the moralism described above; assurance without exhortation produces passivity. Teaching that consistently pairs them - as the New Testament does within individual sentences - is more demanding to construct and considerably more useful. The test is whether a congregation's teaching leaves members knowing both what to do and why they are not doing it alone.

3. Put off and put on: the Pauline imperatives

Paul's ethical instruction repeatedly uses the imagery of removing and donning clothing. You were taught to put away your former way of life, your old self, corrupt and deluded by its lusts, and to be renewed in the spirit of your minds, and to clothe yourselves with the new self, created according to the likeness of God in true righteousness and holiness (Ephesians 4:22-24). The same pattern appears at length in Colossians 3:5-14.

The content is unusually concrete, which is worth noticing because discussions of sanctification frequently remain abstract. What is to be put off includes anger, wrath, malice, slander, abusive language, and lying to one another (Colossians 3:8-9); what is to be put on includes compassion, kindness, humility, meekness, patience, forbearance, and forgiveness (Colossians 3:12-13). These are describable behaviours in identifiable relationships rather than internal states.

The imagery implies deliberate action on the believer's part while presupposing something already accomplished. Colossians grounds the imperatives in a prior indicative: you have stripped off the old self with its practices and have clothed yourselves with the new self (Colossians 3:9-10). The believer is told to become what they have been made, which is the same structure identified in the vocabulary of sanctification.

Paul also specifies replacement rather than mere cessation, and the pattern is consistent enough to be a method. Thieves are told not simply to stop stealing but to labour and work honestly with their own hands, so as to have something to share with the needy (Ephesians 4:28). Evil talk is to be replaced with what is useful for building up (Ephesians 4:29). The instruction is not to empty a space but to fill it differently, which corresponds to what is actually required to change entrenched behaviour.

The letters place these imperatives in explicitly communal settings. The Ephesians and Colossians instructions concern how members treat one another, and the reason given for truth-telling is that we are members of one another (Ephesians 4:25). Sanctification in Paul is not principally a private transaction between an individual and God but a change worked out in the relationships of a community, which is why so much of the ethical material concerns speech, anger, and forgiveness.

4. Flesh and Spirit: the internal conflict

Galatians describes an ongoing conflict: live by the Spirit, and do not gratify the desires of the flesh. For what the flesh desires is opposed to the Spirit, and what the Spirit desires is opposed to the flesh; for these are opposed to each other, to prevent you from doing what you want (Galatians 5:16-17). The Pauline term sarx, flesh, does not denote the body as such but the whole person considered as oriented away from God, which is why its works include jealousy, anger, quarrels, and factions alongside bodily sins (Galatians 5:19-21).

The contrast Paul draws between the works of the flesh and the fruit of the Spirit is grammatically deliberate. Works are plural and produced; fruit is singular and grown. The fruit of the Spirit is love, joy, peace, patience, kindness, generosity, faithfulness, gentleness, and self-control (Galatians 5:22-23), presented as a single organic outcome rather than a list of achievements to be assembled. The metaphor implies cultivation and time rather than manufacture.

Romans 7 presents the internal conflict in its most acute form: I do not do what I want, but I do the very thing I hate (Romans 7:15); I can will what is right, but I cannot do it (Romans 7:18). The identity of the speaker has been debated since the patristic period - whether Paul describes his pre-Christian experience, the Christian life, or a rhetorical figure representing humanity under law - and the debate remains open. What the passage indisputably describes is the experience of knowing the good and failing to do it.

Romans 8 supplies the resolution the previous chapter withholds, and the resolution is pneumatological rather than volitional. There is therefore now no condemnation for those who are in Christ Jesus, for the law of the Spirit of life in Christ Jesus has set you free from the law of sin and of death (Romans 8:1-2). The chapter then describes life according to the Spirit, and the mortifying of the deeds of the body is attributed to the Spirit's agency working through the believer: if by the Spirit you put to death the deeds of the body, you will live (Romans 8:13).

The pastoral significance of this material is considerable and is frequently missed. Paul's frank account of internal division normalizes an experience that believers often interpret as evidence that their conversion was not genuine. A tradition containing Romans 7 cannot teach that authentic faith produces immediate consistency, and congregations that imply otherwise are producing either despair or concealment among members whose experience matches Paul's description.

5. Augustine and the ordering of love

Augustine's most consequential contribution to this subject is the identification of love, rather than knowledge or will considered abstractly, as the operative factor in human action. His account holds that human beings are constituted by what they love, that sin consists in disordered love - loving lesser goods more than greater, and the creature more than the Creator - and that conversion is fundamentally a reordering of loves rather than the acquisition of information.

The Confessions provide the extended demonstration. Augustine's account of his own protracted resistance to conversion turns not on ignorance but on divided desire: he knew what he should do and did not want it enough, and his celebrated prayer for chastity but not yet identifies the condition precisely. The opening formulation - you have made us for yourself, and our heart is restless until it rests in you - locates the human problem in misdirected longing rather than in error.

The implications for formation are substantial and are what much of the recent recovery of Augustine in theological anthropology has emphasized. If a person is governed by what they love, then teaching that addresses beliefs alone will not change them, and the observed gap between what Christians affirm and how they live is exactly what this account predicts. A person can hold correct doctrine about generosity while loving security more, and no amount of further instruction about generosity will address the loving.

Augustine's account of how loves are reordered is theologically specific: it is the work of grace, drawing the will by presenting a greater good as delightful rather than by overriding it. His formulation that grace works by delight rather than by compulsion preserves genuine agency while making the change God's work. This is the framework within which his controversy with Pelagius should be read, since the dispute concerned whether the will could reorder itself unaided.

The practical corollary is that formation must engage the affections and not only the understanding, which is what worship, beauty, narrative, friendship, and habituated practice do and what argument does not. This is not anti-intellectualism; Augustine was among the most rigorous of theologians. It is a recognition that the intellect is not the seat of the problem, and that a formation programme addressing only the intellect will leave the problem where it found it.

6. Aquinas, the virtues, and the reality of habit

Aquinas' treatment of the virtues, developed in the Summa Theologiae and drawing substantially on Aristotle, supplies the tradition's most systematic account of how character is formed. A virtue is a stable disposition, a habitus, that makes both its possessor and their action good. It is not a single act, nor a feeling, nor a rule followed, but a settled readiness to act well that has become part of the person.

Acquired virtues are formed by repeated action. A person becomes just by doing just acts and courageous by doing courageous ones, and the repetition alters the person so that the action becomes progressively more natural and eventually characteristic. This is a claim about human nature with substantial support from ordinary experience: skills, tastes, and dispositions of every kind are acquired this way, and there is no reason moral dispositions should be exceptions.

Aquinas also holds that certain virtues cannot be acquired and must be infused: the theological virtues of faith, hope, and love are given by God and direct the person to a supernatural end that natural capacity cannot reach. This preserves the priority of grace within a framework that takes habituation seriously, and it is why his account is not simply Aristotle baptized. The infused virtues are given; their exercise nonetheless involves the person acting.

The relation between the two is genuinely difficult, and Aquinas' resolution is that infused virtue is given complete in principle while facility in its exercise is developed through practice. A newly converted person genuinely possesses charity and may still find loving a particular enemy extremely difficult, and the difficulty diminishes with practice. This account fits Christian experience better than either a purely acquired or a purely infused model.

For congregational practice the implication is that repeated action is a means of grace rather than mere behaviour management. A person who practises generosity becomes generous; a person who practises forgiveness becomes forgiving; a person who attends worship weekly for decades is formed by it in ways they did not choose and cannot fully articulate. This is why the tradition prescribes practices rather than only convictions, and why congregations that have abandoned the practices have removed the mechanism.

7. The Reformation: sanctification distinguished and not separated

The Reformation's central concern in this area was to secure that justification rests on Christ's righteousness received by faith rather than on the believer's transformation, and this required distinguishing justification from sanctification sharply. Luther's insistence that the believer is simultaneously righteous and a sinner, simul iustus et peccator, expresses the resulting position: the believer's standing is complete while their condition is in progress.

The distinction was pastorally motivated and its motivation should be understood. A person whose acceptance by God depends on their progress in holiness has no stable ground of assurance, since their progress is uneven and their self-assessment unreliable. Locating acceptance entirely in Christ's work received by faith removes the anxiety, and Luther's own experience of the medieval penitential system shaped his conviction that this was the gospel's practical content.

Distinguishing did not mean separating, and this is frequently misunderstood by both critics and popularizers. Calvin taught that Christ cannot be divided and that those united to him receive both justification and sanctification together, a doctrine of double grace in which neither is received without the other. The Reformed confessions consistently teach that good works are the necessary fruit of justifying faith while denying that they are its ground.

The Reformers also retained a substantial account of the means by which sanctification proceeds: the preaching of the word, the sacraments, prayer, discipline, and the ordinary practices of Christian life. Calvin's treatment of the Christian life in the Institutes describes self-denial, cross-bearing, and meditation on the future life in terms that are demanding by any standard, and the Puritan tradition that followed produced an extensive practical literature on mortification and the cultivation of holiness.

The characteristic failure mode of this tradition is not licence but a curious paralysis, in which fear of implying that works contribute to justification produces reluctance to teach practices at all. Congregations formed by this can be doctrinally precise about the ground of acceptance and entirely unequipped for the transformation the same confessions expect. The remedy is within the tradition's own resources, since its confessions and its practical literature both address it directly.

8. Wesleyan holiness and the expectation of present transformation

The Wesleyan tradition made sanctification its distinctive emphasis and expected substantially more present transformation than the magisterial Reformation generally taught. Wesley held that believers may in this life be so filled with love for God and neighbour that sin no longer reigns, a state he described as Christian perfection or entire sanctification, and he insisted that this was a matter of love rather than of flawlessness or freedom from mistake.

Wesley's careful qualifications are frequently omitted by both advocates and critics. He explicitly denied that the perfected are free from ignorance, error, infirmity, or temptation, and he located perfection in the orientation of love rather than in the absence of every fault. He also held that it could be lost. The doctrine is considerably more modest than its name suggests and considerably more demanding than most contemporary Christian expectation.

The tradition's practical machinery is its more transferable contribution. Wesley organized converts into societies, classes, and bands with regular meetings in which members answered searching questions about their spiritual state and conduct, and the class meeting provided weekly accountability of a kind most congregations now lack entirely. The general rules - do no harm, do good, attend upon the ordinances of God - gave definite content to the expectation.

The nineteenth-century holiness movement developed these emphases in directions Wesley would not all have endorsed, and the resulting traditions, including much of Pentecostalism, have carried a strong expectation of transformative experience. Criticism of these traditions has focused on the risk of pretence, the pastoral damage done when the expected experience does not occur, and the tendency to identify holiness with abstention from particular behaviours.

The disagreement between Reformed and Wesleyan accounts is genuine and is not resolved here. What both hold is that the New Testament expects real change, that this change is God's work in which the believer participates, and that structured accountability and definite practices serve it. The Wesleyan contribution most worth recovering across traditions is the class meeting's simple mechanism: a small group meeting regularly in which members are actually asked how they are living.

9. The disciplines and what they are for

The classical Christian disciplines - prayer, fasting, Scripture reading and meditation, solitude, silence, worship, confession, service, simplicity, and almsgiving - have been recovered in recent decades across traditions that had largely lost them. Their theological status requires care: they are not techniques for producing holiness and they are not meritorious works, and traditions have divided over both misunderstandings.

The most defensible account is that they are means by which a person places themselves where God works. A person cannot make themselves love God more by an act of will, and they can read Scripture, pray, fast, and worship, which are the ordinary settings in which such love has historically been given. The analogy sometimes used is agricultural: a farmer cannot make seed grow and can prepare soil, which is a Pauline image (1 Corinthians 3:6-7).

Jesus practised and assumed these. He prays alone repeatedly (Mark 1:35; Luke 5:16; 6:12), fasts (Matthew 4:2), withdraws to solitary places, and attends synagogue as was his custom (Luke 4:16). His teaching on almsgiving, prayer, and fasting in Matthew 6 uses when rather than if throughout, assuming the practices and regulating their manner. The early church continued fasting, fixed prayer, and almsgiving as ordinary features of Christian life.

The disciplines are also where the bodily dimension of formation becomes most evident. Fasting engages the body directly; kneeling, standing, silence, and rising early are physical acts; the sacraments involve water, bread, and wine. A tradition committed to the goodness of the body and to bodily resurrection should expect formation to work through the body rather than around it, and the disciplines are the tradition's practical acknowledgement of this.

Two cautions are warranted. Disciplines can become an arena for self-assessment and comparison, which is the specific fault Jesus addresses in Matthew 6 and which the Pharisee's prayer in Luke 18:11-12 illustrates. And they can be pursued in ways that damage people, particularly fasting where eating disorders are present, and solitude and silence where trauma or mental illness make them harmful. Pastoral discernment about who should practise what is a necessary part of teaching them.

10. Embodiment and the formation of what we want

Recent theological work has pressed the argument that human beings are formed more fundamentally by practices than by beliefs, and that the practices in question are largely bodily and largely unnoticed. On this account, what a person does repeatedly with their body - where they go, what they look at, what they consume, what rhythms structure their week - shapes their loves more powerfully than what they consciously affirm.

The argument's theological warrant is the anthropology already established: if human beings are constituted by love rather than by belief, and if love is formed by habituated practice rather than by argument, then the formative power of routine follows directly. The claim is not that beliefs are unimportant but that they are downstream of something else, and that a formation strategy aimed exclusively at beliefs is aimed at the wrong target.

This account has an uncomfortable corollary that congregations should face. Members are being formed continuously by practices outside the church's control - by employment, media consumption, advertising, transport, and the shape of the week - and the hour or two of weekly congregational practice competes with a great deal of counter-formation. A congregation that treats formation as what happens in its own programmes has misjudged the scale of what it is addressing.

The constructive implication is that congregations should attend to the shape of members' whole lives rather than only to congregational activity. Daily prayer, patterns of eating, sabbath observance, the ordering of households, and deliberate decisions about consumption and attention are where most of a person's formative practice occurs. Teaching that helps members shape these is more consequential than additional congregational programming.

Caution is needed about importing empirical claims. Psychological research on habit formation concerns behavioural regularity and cue-response learning, and while it may illuminate how routines become automatic, it does not establish theological claims about the reordering of loves and should not be cited as though it did. The theological account stands on its own sources; the empirical literature at most offers partial and contested corroboration of one component.

11. The community as the setting of sanctification

The New Testament's ethical instruction is overwhelmingly addressed to communities and concerns how members treat one another. The virtues Paul lists are relational - patience, kindness, forbearance, forgiveness - and cannot be practised alone. The fruit of the Spirit is displayed in company. The commands to bear one another's burdens (Galatians 6:2), to confess sins to one another (James 5:16), and to encourage one another daily (Hebrews 3:13) presuppose people who are actually present to each other.

The community also supplies what an individual cannot supply for themselves: accurate information about how they are. Self-assessment is unreliable in exactly the areas where it matters most, and Jeremiah's observation that the heart is devious above all else (Jeremiah 17:9) states a difficulty that no amount of introspection resolves. Someone who knows a person over time and is free to tell them the truth is an instrument of formation that no private discipline replaces.

This requires conditions most congregations do not create. Members must be known well enough for anyone to notice, relationships must be durable enough to survive candour, and the community's culture must make honest speech possible without penalty. Congregations where everyone reports being fine, where disagreement is treated as disloyalty, or where turnover is high cannot provide this whatever their teaching.

Friction is part of the mechanism rather than a failure of it. The specific virtues the New Testament commends are learned on people who are difficult, and a community selected for compatibility removes the material on which patience and forbearance are practised. The New Testament's own communities were notably diverse in ethnicity and status, and the friction this produced is visible throughout the epistles and is treated as the occasion for formation rather than as a problem to be solved by separation.

The practical structures that support this are unremarkable: small groups that persist over years rather than terms, membership that means something, pastoral relationships in which someone is responsible for knowing how a person is, and the older practices of spiritual direction and confession which several traditions retain and others have abandoned. What matters is that someone is in a position to notice and permitted to speak.

12. Failure, confession, and the long view

Any usable account of sanctification must handle failure, since failure is universal and the tradition's own texts assume it. If we say that we have no sin, we deceive ourselves, and the truth is not in us; if we confess our sins, he who is faithful and just will forgive us our sins and cleanse us from all unrighteousness (1 John 1:8-9). The letter is addressed to believers and treats ongoing confession as a normal feature of Christian life.

Confession is the practice the tradition prescribes, and it has both a vertical and a horizontal form. James instructs believers to confess their sins to one another and pray for one another, so that they may be healed (James 5:16). Traditions differ substantially on sacramental confession and on the role of a confessor, and they agree that sin named to another person is handled differently from sin held privately, which is a claim borne out by ordinary experience.

Repentance in the biblical sense is more than remorse. The Greek metanoia denotes a change of mind issuing in changed direction, and the biblical instances involve material action: Zacchaeus makes restitution (Luke 19:8), the Ephesian converts burn their magic books (Acts 19:19), and Paul instructs the thief to work honestly and share (Ephesians 4:28). Congregations that treat repentance as an internal transaction have omitted what the texts consistently include.

The time-scale of sanctification is long, and pastoral practice should reflect this. The New Testament uses metaphors of growth, cultivation, and journey rather than of instantaneous change, and the epistles address communities who had been believers for years and still required basic instruction. Expectations of rapid transformation produce concealment when they are not met, and the concealment is more damaging than the slow progress it hides.

The tradition also insists that the outcome is certain even though the progress is uneven, and this is what makes honesty about failure possible. Paul's confidence is that the one who began a good work among you will bring it to completion by the day of Jesus Christ (Philippians 1:6), and John's is that when he is revealed, we will be like him, for we will see him as he is (1 John 3:2). A person who believes the outcome is secured can afford to be truthful about the present, which is precisely what a person who believes their standing depends on their progress cannot.

13. What congregations should actually do

The analysis supports a set of practices rather than a programme. The first is teaching that pairs indicative and imperative in the way the New Testament does, so that members know both what they are called to and that they are not doing it alone. Teaching that only assures produces passivity; teaching that only exhorts produces exhaustion or pretence, and most congregations have a settled tendency toward one.

The second is the actual prescription of practices, taught concretely rather than commended in general. Members should be taught how to pray, given a pattern they can sustain, taught how to read Scripture, and shown what fasting, confession, sabbath, and almsgiving involve in practice. The tradition's disciplines are not obscure and are rarely taught with enough specificity for anyone to begin.

The third is durable relationships in which someone is positioned to notice. This may take the form of small groups that persist, spiritual direction, confession, or the Wesleyan class meeting, and the form matters less than whether anyone actually knows how a member is living and is free to say something. Congregations that have every other element and lack this will not produce much formation, because the essential feedback is missing.

The fourth is attention to the shape of members' whole week rather than to congregational activity alone. Since most formative practice occurs outside the church's programmes, teaching that helps members order households, work, consumption, attention, and rest is more consequential than additional meetings. This also has the advantage of addressing members who cannot attend more, who are frequently those under the greatest pressure.

The fifth is honesty about failure and about pace. A congregation in which people can say that they are not doing well, that a besetting sin persists, or that they doubt, is a congregation in which formation can proceed, because the material is on the table. A congregation in which everyone reports flourishing has not achieved holiness; it has achieved concealment, and 1 John 1:8 describes the condition precisely.

14. Mental illness, disability, and the limits of formation language

A doctrine of sanctification that describes progressive transformation through practice can inflict serious harm when it is applied without qualification to conditions that are not moral in character. Depression is not a failure of joy, anxiety is not a failure of trust, obsessive-compulsive disorder is not scrupulosity, and psychosis is not a spiritual state. Congregations that treat these as sanctification problems tell suffering members that their condition is a spiritual deficiency, which adds guilt to illness and reliably prevents disclosure. This is among the more common and more damaging pastoral failures in communities that take formation seriously, precisely because the language of transformation is available and seems to apply.

The tradition contains resources for a better position, though they have often been neglected. The lament psalms voice despair without treating it as sin, and Psalm 88 ends in darkness with no resolution offered. Elijah, immediately after a decisive public vindication, asks to die, and the divine response is sleep, food, and a further period of rest before any word is spoken to him (1 Kings 19:4-8) - which is a strikingly physical response to a condition that a purely spiritual account would have addressed differently. Paul's thorn in the flesh remains after three requests for its removal, and the answer given is sufficiency of grace within the affliction rather than its resolution (2 Corinthians 12:7-9).

Distinguishing what belongs to formation from what belongs to illness is genuinely difficult, and the difficulty should be acknowledged rather than resolved by a formula. The categories overlap: a person with depression may also have habits worth changing, and a person avoiding a difficult obligation may describe the avoidance in clinical terms. What follows practically is not that congregations should attempt diagnosis, for which they are not competent, but that they should hold the possibility of illness open, should ask rather than assume, and should default to the assumption that a member reporting persistent inability is describing something real.

The same applies to cognitive disability and to dementia, where the language of progressive transformation through practice has no straightforward application. A person with profound intellectual disability cannot undertake the disciplines described in this article, and a person with advanced dementia may lose the memory of practices sustained for decades. Any account of sanctification that makes these people spiritually deficient has produced a conclusion the doctrine of the image of God forbids. The resolution runs through what has been argued throughout: the outcome is God's work and God's gift, the practices are means rather than mechanisms, and a person's standing does not depend on their progress.

The practical counsel is therefore threefold. Congregations should teach formation in terms that do not imply that difficulty is failure, should make it possible for members to disclose illness without being offered a spiritual diagnosis, and should treat medical and psychological care as compatible with rather than opposed to spiritual practice - a position most Christian traditions hold formally and many congregations contradict informally. The care of a person with mental illness or cognitive disability is not a suspension of the community's formational life. It is one of the places where the community's own formation is most visibly tested.

15. The end of sanctification

The tradition is clear about what sanctification is for, and the answer is not moral improvement considered as an end in itself. The stated goal is conformity to Christ: those whom he foreknew he also predestined to be conformed to the image of his Son (Romans 8:29). The transformation described in 2 Corinthians 3:18 is into the same image, from one degree of glory to another, and the agent is the Lord, the Spirit.

This has a corrective function against two familiar distortions. Sanctification is not the production of respectability, and the New Testament's account of Christ's own life - itinerant, poor, in conflict with religious authority, and executed - is not a template for social conformity. Nor is it self-improvement, since its criterion is external to the self and its outcome is likeness to another rather than the realization of one's own potential.

The eschatological horizon supplies both the assurance and the humility the doctrine requires. Beloved, we are God's children now; what we will be has not yet been revealed. What we do know is this: when he is revealed, we will be like him, for we will see him as he is (1 John 3:2). The completion is future and is God's act; the present is genuinely partial. The verse continues with a practical inference: all who have this hope in him purify themselves, just as he is pure (1 John 3:3).

The doctrine also has a communal and cosmic scope that individualistic accounts lose. The goal in Ephesians is that the whole body reaches maturity, to the measure of the full stature of Christ (Ephesians 4:13), and the growth described is of the body knit together rather than of members separately. Romans 8 sets human transformation within creation's own liberation. Sanctification is a component of what God is doing with everything rather than a private project.

The final practical consequence is a kind of patience that neither excuses nor despairs. If the outcome is secured, the pace is God's, the setting is a community, and the means are ordinary practices sustained over decades, then the appropriate posture is neither anxiety about progress nor complacency about its absence. It is the steady use of the means, in company, over a long time - which is exactly what the tradition has always prescribed and what congregations most often replace with something faster.

The doctrine's final consolation is worth stating plainly because it is what makes the whole demanding programme bearable. A believer who has practised faithfully for decades and can identify little progress, who still loses their temper with the same person and still fails at the same point, is in the position the New Testament assumes rather than outside it. Paul, near the end of his life, described himself as the foremost of sinners in the present tense (1 Timothy 1:15) and elsewhere as not having already obtained this or reached the goal, but pressing on (Philippians 3:12-14). The measure of a Christian life is not the distance covered but the direction faced, and the promise is that the one who began the work will finish it. Congregations that can say this plainly to members who are discouraged are offering something the tradition actually holds, rather than either a demand for progress the person cannot produce or a reassurance that nothing was expected of them.

It is worth ending where the doctrine itself ends, which is not with the believer at all. The purpose of sanctification, in every account the tradition has produced, is that God should be glorified and enjoyed - that a person should come to love what is genuinely lovely and to find their rest where rest is actually to be found. Augustine's opening prayer states it as well as anything written since: our heart is restless until it rests in you. Understood this way, the disciplines are not burdens imposed on a life that would otherwise be free, and the slow reordering of desire is not a programme of self-improvement. It is the process by which a person is brought to want what will actually satisfy them, which is why the tradition has consistently described holiness as freedom rather than as constraint, and why the saints who have been most demanding of themselves have generally been the ones who described the whole business as joy.

Limitations

• Christian traditions differ substantively on the relation between justification and sanctification, on whether entire sanctification is attainable in this life, on the status of the sacraments as means of grace, and on the identity of the speaker in Romans 7. The article describes these differences and does not resolve them, and readers should expect their own tradition's account to diverge at specific points.
• Engagement with psychological literature on habit formation is deliberately limited and cautious. That literature concerns behavioural regularity rather than the reordering of loves, its findings on matters such as the time required to establish habits are frequently overstated in popular accounts, and nothing in the theological argument here depends on it.
• The historical treatment of Augustine, Aquinas, the Reformers, and Wesley is compressed and describes representative positions rather than the full development of each thinker or tradition. Readers should consult the primary sources, particularly where this article's summaries bear on contested points of interpretation.
• No original empirical research on formation, congregational practice, or spiritual disciplines was conducted, and no programme or congregation is evaluated. Recommendations are derived from the theological and historical analysis rather than from measured outcomes.
• The article addresses formation in settings where believers can gather regularly, be known over time, and practise openly. Christians under persecution, in isolation, in institutional confinement, or with severe illness face conditions in which several of the recommended practices are unavailable, and the tradition's resources for those situations are not surveyed here.

Conclusion

The New Testament describes believers as already sanctified and as being sanctified, and holds divine action and human effort together within single sentences. Work out your own salvation, for it is God who is at work in you, is the pattern, and the two characteristic failures - waiting passively for a transformation one is told to pursue, and trying harder at a change one cannot produce - both result from separating what the texts join.

Augustine's identification of disordered love as the operative problem explains the familiar gap between what Christians affirm and how they live: a person governed by what they love is not changed by information about what they should love. Aquinas' account of virtue as a stable disposition formed by repeated action supplies the corresponding mechanism, and his infused virtues preserve the priority of grace within it.

Formation is therefore bodily, habitual, communal, and slow. It proceeds through practices that place a person where God works rather than through techniques that produce holiness; it requires a community in which someone knows how a member is living and may say so; and it operates on a timescale that makes expectations of rapid transformation a source of concealment rather than of progress.

What congregations should do follows directly and is unremarkable: teach indicative and imperative together, prescribe practices concretely enough that someone could begin, build relationships durable enough to carry honesty, attend to the shape of members' whole week rather than to church programmes alone, and make it possible to say that things are not going well. The outcome is secured elsewhere, which is precisely what makes that honesty affordable.

References

1. The Holy Bible, New Revised Standard Version Updated Edition. (2021). National Council of Churches.
2. Augustine of Hippo. (c. 400). Confessions.
3. Thomas Aquinas. (c. 1265-1274). Summa Theologiae, Prima Secundae, questions 49-70 on habits and virtues.
4. Calvin, J. (1559). Institutes of the Christian Religion, Book III, chapters 3-10 on regeneration and the Christian life.
5. Wesley, J. (1777). A Plain Account of Christian Perfection.
6. Owen, J. (1656). Of the Mortification of Sin in Believers.
7. Dunn, J. D. G. (1998). The Theology of Paul the Apostle. Eerdmans.
8. Fee, G. D. (1994). God’s Empowering Presence: The Holy Spirit in the Letters of Paul. Hendrickson.
9. MacIntyre, A. (2007). After Virtue: A Study in Moral Theory (3rd ed.). University of Notre Dame Press.
10. Hauerwas, S. (1981). A Community of Character: Toward a Constructive Christian Social Ethic. University of Notre Dame Press.
11. Smith, J. K. A. (2009). Desiring the Kingdom: Worship, Worldview, and Cultural Formation. Baker Academic.
12. Willard, D. (1988). The Spirit of the Disciplines: Understanding How God Changes Lives. Harper & Row.
13. Foster, R. J. (1978). Celebration of Discipline: The Path to Spiritual Growth. Harper & Row.
14. Peterson, E. H. (1980). A Long Obedience in the Same Direction: Discipleship in an Instant Society. InterVarsity Press.
15. Wesley, J. (1743). The General Rules of the United Societies.