1 Corinthians 5:1-13 - A Little Leaven: Discipline and Holiness

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“Since then you would need to go out of the world.” Paul’s own clarification keeps this severe chapter from becoming a charter for Christian withdrawal. Holiness does not require escape from neighbors, relatives, coworkers, or strangers who do not share the Church’s life. Paul draws the sharper boundary inside the Church, where someone claims the name of brother while openly persisting in grave sin and the community protects false peace.

4:1-21, Stewards, Fathers, and Apostolic Humility ended with apostolic authority held under Christ: Paul warned beloved children “in Christ Jesus” and “through the gospel,” giving them room to receive correction before he came. Chapter 5 shows what that authority requires when known public conduct wounds the Church. The gathered community must exchange boasting for mourning and act in the Lord’s name, yet every action remains accountable to Christ and ordered toward salvation. The center of the chapter is not exclusion. It is “Christ, our Passover,” whose sacrifice makes truthful cleansing possible.

The Sin Named and the Mourning Missing (1 Corinthians 5:1-5)

¹ It is actually reported that there is sexual immorality among you, and such sexual immorality as is not even named among the Gentiles—that a man has his father’s wife! ² And you are puffed up, and have not rather mourned, that he who has done this deed might be taken away from among you. ³ For I indeed, as absent in body but present in spirit, have already judged (as though I were present) him who has so done this deed. ⁴ In the name of our Lord Jesus Christ, when you are gathered together, along with my spirit, with the power of our Lord Jesus Christ, ⁵ deliver such a one to Satan for the destruction of the flesh, that his spirit may be saved in the day of the Lord Jesus.

Paul names a public sexual scandal: a man has “his father’s wife,” wording that most naturally points to a forbidden household union such as a stepmother or a woman married to his father. Leviticus 18:8 and Deuteronomy 22:30 stand behind the covenant prohibition. The text does not tell us whether the father was living, whether the woman was a Christian, whether coercion was involved, or what legal situation surrounded the union. Those silences matter. They prevent speculation about the woman’s agency or guilt, the offender’s motives, and facts Paul has not supplied.

Paul’s judgment here does not contradict his warning in 4:5. There he forbade premature final claims about hidden motives and the counsels of hearts, which the Lord alone will reveal. Here he addresses conduct that is already reported and publicly known; in verse 12 he will explicitly require judgment “inside” the Church. Christian discernment may name known conduct, establish truthful boundaries, protect the vulnerable, and call for repentance. It may not pronounce the Lord’s final verdict over a hidden heart.

The communal response deepens the scandal. The Corinthians are “puffed up” when they should have mourned. Paul contrasts πεφυσιωμένοι (pephysiōmenoi), a settled state of inflation or pride, with ἐπενθήσατε (epenthēsate), the concrete grief they failed to show.¹ Mourning is neither gossip nor paralysis. It brings the wound before God, strips correction of excitement and self-righteousness, and refuses to call grave harm harmless. A Church that mourns can tell the truth without enjoying another person’s fall.

Verse 5 is deliberately severe. “Deliver” reflects παραδοῦναι (paradounai), to hand over; “flesh” is σάρξ (sarx); and the purpose clause, ἵνα τὸ πνεῦμα σωθῇ (hina to pneuma sōthē), states the goal: that the spirit may be saved.² “Destruction of the flesh” has been read as bodily chastisement, the breaking of sinful practice, or severe loss outside ecclesial protection. St John Chrysostom understands it as bodily chastisement; what Paul makes explicit is the hoped-for end, salvation in the day of the Lord Jesus. It must not be turned into body-spirit dualism. The body is God’s creation and will soon be called a member of Christ and a temple of the Holy Spirit.

This is an apostolic and assembled ecclesial act “in the name” and “with the power” of the Lord Jesus. It gives no permission for lay vigilantism, family coercion, physical harm, public exposure, rumor, or humiliation. Proper pastoral authority, accountable process, and the salvation of the person govern the action. Where abuse, coercion, crime, or danger is present, protection and lawful reporting serve truth; mourning must never become concealment for the sake of a community’s reputation.

Christ Our Passover and the Unleavened Church (1 Corinthians 5:6-8)

⁶ Your glorying is not good. Do you not know that a little leaven leavens the whole lump? ⁷ Therefore purge out the old leaven, that you may be a new lump, since you truly are unleavened. For indeed Christ, our Passover, was sacrificed for us. ⁸ Therefore let us keep the feast, not with old leaven, nor with the leaven of malice and wickedness, but with the unleavened bread of sincerity and truth.

Paul now reveals the chapter’s theological center: “Christ, our Passover, was sacrificed for us.” Discipline is not moral housekeeping or an institution protecting its image. It belongs to Paschal life. The Church cleanses the old leaven because Christ has already made her a new people through His sacrifice.

The order of Paul’s words carries the Gospel. “Purge out” uses ἐκκαθάρατε (ekkatharate), a forceful cleansing imperative, while “you truly are unleavened” names an identity already given.³ Paul does not tell the Church to cleanse herself into acceptance. She removes the old leaven because she already belongs to the sacrificed Christ. Repentance answers grace; it does not purchase grace.

Leaven works quietly through the whole lump. Paul does not claim that every member shares the offender’s guilt. He warns that publicly protected sin teaches the entire Body a lie: holiness is optional, repentance is unnecessary, and communion can remain truthful while grave sin is defended. The danger is the formative power of tolerated, unrepented conduct. It must never be used to brand survivors, tempted people, wounded people, or repentant sinners as contaminants.

Nor is “old leaven” an ethnic label for Jews or Judaism. Paul receives Israel’s Passover as holy scriptural language and names Christ as its fulfillment. He then identifies the leaven directly as “malice and wickedness.” The cleansing begins with the Church’s own life.

Verse 8 moves from removal to celebration. ἑορτάζωμεν (heortazōmen) means “let us keep the feast” or “let us celebrate the feast”; εἰλικρίνεια (eilikrineia) and ἀλήθεια (alētheia) name sincerity or purity and truth.⁴ Paul’s positive goal is a sustained common life in which worship and conduct agree. The Church does not cleanse merely to become empty of evil. She keeps the feast as a people made truthful in Christ.

The Coptic Church calls the week of the Passion the Holy Pascha, hearing Christ’s saving work as the passage from death to life. Her Eucharistic offering bread is leavened: Paul’s old leaven here names malice and wickedness, not a rule for baking the offering.⁵ The heart, not the loaf, must be cleansed of the falsehood he names.

Judgment Inside, Mercy Toward the World (1 Corinthians 5:9-13)

⁹ I wrote to you in my epistle not to keep company with sexually immoral people. ¹⁰ Yet I certainly did not mean with the sexually immoral people of this world, or with the covetous, or extortioners, or idolaters, since then you would need to go out of the world. ¹¹ But now I have written to you not to keep company with anyone named a brother, who is sexually immoral, or covetous, or an idolater, or a reviler, or a drunkard, or an extortioner— not even to eat with such a person. ¹² For what have I to do with judging those also who are outside? Do you not judge those who are inside? ¹³ But those who are outside God judges. Therefore “put away from yourselves the evil person.”

Paul corrects an overbroad reading of separation. Holiness cannot mean abandoning ordinary life among people outside the Church; that would require leaving the world. Christians remain present to neighbors, relatives, coworkers, and strangers in mercy, service, and truthful witness. The stricter case concerns “anyone named a brother” who openly persists in grave conduct while claiming Christian communion.

The Greek reinforces that scope. “Not to keep company” uses συναναμίγνυσθαι (sunanamignysthai), to associate closely or mix together, while “not even to eat” uses συνεσθίειν (synesthiein), to eat with.⁶ Whether Paul means the common table, the Eucharist, or both, shared fellowship must tell the truth when someone called a brother protects public, unrepented sin. Proper pastoral authority, mourning, and hope for restoration govern the boundary.

Paul’s list prevents selective holiness. He names sexual immorality alongside covetousness, idolatry, reviling, drunkenness, and extortion. The word ἅρπαξ (harpax) can denote a robber, swindler, or extortioner, so exploitation and predatory greed stand within the warning.⁶ A community that condemns one visible sexual sin while excusing dishonest gain, verbal cruelty, addiction defended without repentance, or exploitation has refused Paul’s mirror.

“Those who are outside God judges” assigns final judgment to God and closes the door to contempt. It does restrain the fantasy that the Church’s holiness is proved by condemning the world. Paul places the stricter responsibility within the household of faith, where communion must be truthful.

The final command, ἐξάρατε (exarate), “put away” or “remove,” takes up the Septuagint’s covenant formula in Deuteronomy 17:7: the evil is to be removed from the people. Paul keeps the scope internal: “from yourselves.”^7, 8 The boundary is real, and repentance remains possible. Exclusion is therefore neither the Church’s delight nor her final word over a sinner.

In 6:1-11, Judgment, Inheritance, and Cleansing, Paul continues the theme of judgment inside the Church and proclaims the cleansing God has already given: “you were washed,” “you were sanctified,” “you were justified.” Here that coming promise guards the present command from despair. Truthful discipline seeks the life in Christ to which repentance can return.

Gems from the Fathers 💎

St John Chrysostom reads Paul’s severity medicinally. He says Paul is “opening unto him the doors of repentance”.⁹ The command remains severe, but its purpose is recovery. The boundary tells the truth so that the sinner may awaken and return.

He compares the severity to a schoolmaster: correction looks toward the sinner’s awakening and return, not the community’s pleasure in punishment.

St John Chrysostom sees the shared danger of tolerated sin: “if neglected it has power to waste the rest of the body”.¹⁰ The offense belongs to one person, but protecting it teaches others to call repentance unnecessary.

St John Chrysostom notices that Paul says not merely that Christ died, but that He “has been sacrificed”.¹¹ Christ’s sacrifice keeps this passage from collapsing into discipline policy. The Church’s holiness begins at the Cross and takes the form of Paschal communion in sincerity and truth.

St John Chrysostom distinguishes ecclesial discipline from the civil death penalties of the older covenant. In the Church, “through repentance they are absolved”, and so escape punishment.¹² The command is grave, but it does not give Christians a mandate to injure the offender.

The Church’s Voice in Worship ⛪

On Thursday of the first week of Great Lent, the Church reads 1 Corinthians 4:16-5:9. The Liturgy Psalm 118:14, 18 (LXX 117:14, 18) joins the Lord’s saving strength to chastening that has not surrendered the singer to death.^13, 14 Before the severe apostolic command, the Church prays toward life. First John 1:8-2:11 forbids the claim to be without sin and opens confession toward forgiveness. Acts 8:3-13 brings persecution and the spread of the Gospel into view; Mark 4:21-29 speaks of hidden things brought to light and the seed growing beyond the sower’s control. Correction serves God’s life-giving work, not our mastery over a soul.

On Monday of the third week of Great Lent, the Epistle is 5:9-6:5. At Matins Wisdom calls publicly in Proverbs 1:20-33, and Luke 19:11-28 tests servants by their use of what was entrusted. At the Liturgy, 1 Peter 1:3-12 begins from living hope, Acts 17:10-14 shows attentive hearing in Berea, and Luke 11:33-36 asks whether the light within us has become darkness. Psalm 32:1-2, 5 (LXX 31:1-2, 5), heard across Matins and Liturgy, joins forgiven sin to the end of concealment.^15, 14 These companions turn Lent away from inspecting another person’s shame and toward honest confession in the light of mercy.

The First Sunday of Amshir joins 5:11-13 to 6:1-11; its washing and Kingdom hope are developed in 6:1-11.

Spiritual Fruit 🍇

Mourn before you correct. Another person’s public sin can awaken anger, curiosity, or the pleasure of feeling morally clear. Paul first calls the Church to grief before God. Pray for the person by name and ask the Lord to expose pride in your own response. If the matter belongs before church authority, report what is known without embellishment and refuse gossip. Grief does not weaken truth; it keeps truth ordered toward salvation.

Bring the protected habit into Paschal light. “Christ, our Passover, was sacrificed for us.” Name one old leaven you have learned to excuse: a hidden sexual practice, contemptuous speech, dishonest gain, drunkenness, malice, or an appetite guarded as a private right. Bring it to confession. Remove the access or arrangement that feeds it. Make restitution where another person has been harmed. Christ’s mercy reaches what we stop defending.

Let Paul’s whole list examine you. Selective holiness condemns the sin that feels foreign while protecting the sin that feels respectable. Place sexual conduct, money, idolatrous attachments, speech, alcohol, and the use of power before God together. Then answer concretely: apologize for the reviling word, return what was taken, refuse the profitable injustice, or seek accountable help for the appetite that has begun to rule you.

Pray for return while a boundary stands. Name a person under discipline before Christ without rehearsing the scandal. Ask for repentance, healing for those harmed, and wisdom for those responsible for the boundary. You need not pretend that trust is already restored in order to desire that no person be lost.

Stay near the world without sharing its falsehood. Paul refuses withdrawal from ordinary contact with outsiders. God judges those outside; the Church’s first responsibility is truth within her own communion. Meet neighbors, relatives, and coworkers without contempt. Listen, serve, and speak honestly when needed. Christian holiness withdraws from sin, not from love.

Teaching Notes

The Sin Named and the Mourning Missing (1 Corinthians 5:1-5)

• Ask: Why does Paul focus on the Church’s pride and lack of mourning as well as the man’s known conduct?
• Emphasize: First Corinthians 4:5 reserves hidden hearts and final judgment for the Lord. First Corinthians 5:3 and 5:12 require discernment of known public conduct. The assembled act in verse 5 remains under Christ’s authority and ordered toward salvation.
• Watch for: Keep every hard-text safeguard at verse 5. The passage authorizes no lay punishment, forced disclosure, physical harm, family coercion, rumor, or public humiliation. Abuse, coercion, crime, and danger require proper safeguarding and lawful protection.
• Connect: 4:1-21 held authority under Christ and the Gospel. This passage shows that authority becoming accountable correction in Christ’s name, with repentance and salvation as its purpose.
• Practice: When you hear of a person’s fall, pray for that person before saying anything to anyone else. Report known danger through the proper channel rather than spreading it as a story.

Christ Our Passover and the Unleavened Church (1 Corinthians 5:6-8)

• Ask: What changes when cleansing begins from “Christ, our Passover” and the identity “you truly are unleavened”?
• Emphasize: Grace establishes the Church’s identity; repentance removes what contradicts that gift. The goal is a Paschal life of sincerity and truth.
• Watch for: The leaven is tolerated, unrepented conduct and communal pride. It is not a label for Jewish people, survivors, tempted people, wounded people, or repentant sinners.
• Connect: The Lenten companions join truth coming to light with confession and hope, rather than public shame.
• Practice: Bring one habit you have been excusing to confession, asking for help with a concrete first change.

Judgment Inside, Mercy Toward the World (1 Corinthians 5:9-13)

• Ask: Why does Paul distinguish ordinary life among outsiders from fellowship with someone “named a brother” who persists in open sin?
• Emphasize: Paul rejects both contempt toward the world and false communion inside the Church. His vice list also rejects selective outrage.
• Watch for: The warning concerns a person claiming brotherhood while defending grave sin, not an excuse for cruelty toward repentant strugglers.
• Connect: 6:1-11 joins the warning to God’s cleansing gift, the life toward which repentance returns.
• Practice: Share a meal or coffee with a coworker or neighbor outside the Church, without treating friendship as moral compromise.

Sources

Scripture is from NKJV.

• St John Chrysostom, Homilies on First Corinthians, Homilies 15-16.

• Brenton, Deuteronomy 17; Psalms 117 and 31.

• Coptic Katameros, Thursday of the first week and Monday of the third week of Great Lent.

• Diocese of the Southern United States, The Question of the Real Presence.

• Greek interlinear references in the footnotes.

Footnotes

1. BibleHub, “1 Corinthians 5:2 Greek Interlinear,” biblehub.com. ↩

2. BibleHub, “1 Corinthians 5:5 Greek Interlinear,” biblehub.com. ↩

3. BibleHub, “1 Corinthians 5:7 Greek Interlinear,” biblehub.com. ↩

4. BibleHub, “1 Corinthians 5:8 Greek Interlinear,” biblehub.com. ↩

5. Coptic Orthodox Diocese of the Southern United States, The Question of the Real Presence, FAQ on 1 Corinthians 5:7-8 and leavened offering bread, suscopts.org. ↩

6. BibleHub, “1 Corinthians 5:11 Greek Interlinear,” biblehub.com. ↩ ↩²

7. BibleHub, “1 Corinthians 5:13 Greek Interlinear,” biblehub.com. ↩

8. Brenton, Deuteronomy 17:7, ebible.org. ↩

9. St John Chrysostom, Homily 15 on First Corinthians, §4, on 5:5, newadvent.org. ↩

10. St John Chrysostom, Homily 15 on First Corinthians, on 5:6, newadvent.org. ↩

11. St John Chrysostom, Homily 15 on First Corinthians, §8, on 5:7, newadvent.org. ↩

12. St John Chrysostom, Homily 16 on First Corinthians, on 5:13, newadvent.org. ↩

13. Coptic Katameros, Thursday of the first week of Great Lent, Matins and Liturgy, 11 March 2027, copticchurch.net. ↩

14. Brenton, Psalms 117:14,18 and 31:1-2,5, ebible.org; ebible.org. ↩ ↩²

15. Coptic Katameros, Monday of the third week of Great Lent, Matins and Liturgy, 22 March 2027, copticchurch.net. ↩