1 Corinthians 5 Bible Study: Holiness, Discipline and the Church’s Purity

1 Corinthians 5 is Paul’s direct response to a serious report of sexual sin inside the church at Corinth, and it explains how the community should respond when someone in it persists in a public, unrepentant sin. Readers come to this chapter because it raises hard questions about church discipline, holiness, and how to love a person while refusing to excuse what they are doing. The chapter gives a clear answer: the church must not tolerate open wickedness, its aim in discipline is restoration of the person’s spirit, and its own purity matters for the whole community.

1 Corinthians 5 Summary

Paul opens by naming the problem: a man is living with his father’s wife, and the church is not only tolerating it but seems proud of its own openness. He tells them they should be grieving instead, and he says that he has already passed judgment on the man, acting in spirit as though he were there. He instructs the gathered congregation, with his own spirit present through the authority of Jesus, to remove the man from their fellowship so that his sin is dealt with and his spirit may be saved on the day of the Lord.

From there Paul turns to the wider lesson. A little yeast spreads through a whole batch of dough, and the same is true of unchecked sin in a church. He calls them to clear out the old yeast because Christ, their Passover lamb, has already been sacrificed, so they are to celebrate the feast in sincerity and truth rather than malice and wickedness. He then clarifies an earlier instruction, explaining that he never meant they should cut off all contact with the immoral people of the world, since that would mean leaving the world altogether. The concern is with those who claim to be believers yet live in open sin. The chapter ends with a judgment principle: God judges outsiders, and the church is to remove the wicked person from among them.

Background and Setting

First Corinthians is traditionally attributed to the apostle Paul, who wrote it to the church he had founded in Corinth, a busy port city in Greece with a mix of Jewish and Gentile believers. Most scholars date the letter to the mid-50s AD, probably written during Paul’s time in Ephesus. The church faced divisions, moral failures, and confusion about spiritual gifts, and Paul writes to correct these in a series of responses to both reports he had heard and questions they had sent him.

Chapter 5 belongs to the first major section of the letter, where Paul deals with reports of division and moral disorder. It comes right after his opening thanksgiving and before his discussion of lawsuits between believers and his teaching on marriage and food offered to idols. Reading it in this context shows that Paul sees the sexual sin of one member as part of a larger pattern of pride and fracture in the congregation.

1 Corinthians 5 Section by Section

Verses 1-5: The Church That Should Have Mourned

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 one has his father’s wife. 2 You are puffed up, and didn’t rather mourn, that he who had done this deed might be removed from among you.

1 Corinthians 5:1-2 (WEB)

Paul begins with a shocking report. The sin itself, a man taking his father’s wife, was condemned even by the surrounding pagan culture, which makes the church’s response all the more troubling. Instead of grieving, the congregation was puffed up, perhaps treating its tolerance as a sign of sophistication or freedom. Paul’s first word of correction is that the church should have mourned, because a community that cares about holiness feels the weight of sin in its midst.

Paul then states his own judgment. Though absent in body, he is present in spirit and has already judged the man. He calls the church to gather in the name of Jesus, with his spirit joined to theirs, and to hand the man over to Satan for the destruction of the flesh, so that his spirit might be saved on the day of the Lord. The expulsion is severe, but its purpose is redemptive, aiming at the person’s eventual restoration.

4 In the name of our Lord Jesus Christ, you being gathered together, and my spirit, with the power of our Lord Jesus Christ, 5 are to deliver such a one to Satan for the destruction of the flesh, that the spirit may be saved in the day of the Lord Jesus.

1 Corinthians 5:4-5 (WEB)

Verses 6-8: The Little Yeast That Spreads

6 Your boasting is not good. Don’t you know that a little yeast leavens the whole lump? 7 Purge out the old yeast, that you may be a new lump, even as you are unleavened. For indeed Christ, our Passover, has been sacrificed in our place.

1 Corinthians 5:6-7 (WEB)

Here Paul uses the image of yeast, which in ordinary bread-making spreads through the entire dough. A boast that tolerates sin is never harmless, because it changes the whole community’s character. The Passover imagery follows naturally, since the Israelites removed leaven before the feast, and Paul says Christ himself has been sacrificed as the Passover lamb. The church is therefore to clean out the old leaven so that it may live as the unleavened people it already is in Christ.

Paul then urges them to keep the feast with sincerity and truth. The image shifts from removing a bad influence to celebrating a new way of life. Holiness is not only the absence of sin but the active practice of honest and faithful living together in the light of what Christ has done.

Therefore let us keep the feast, not with old yeast, neither with the yeast of malice and wickedness, but with the unleavened bread of sincerity and truth.

1 Corinthians 5:8 (WEB)

Verses 9-11: Clarifying Who to Avoid

9 I wrote to you in my letter to have no company with sexual sinners; 10 yet not at all meaning with the sexual sinners of this world, or with the covetous and extortionists, or with idolaters; for then you would have to leave the world.

1 Corinthians 5:9-10 (WEB)

Paul admits that his earlier letter had been misunderstood. He had told them not to associate with sexual sinners, and some apparently took this to mean they should avoid all unbelievers. He corrects this by saying that to avoid the immoral people of the world would require leaving the world entirely. The instruction is about the church’s own members, not about a general withdrawal from society.

The list in verse 11 is specific: a person who claims the name of brother or sister while living in habitual sexual sin, greed, idolatry, slander, drunkenness, or extortion. The concern is with a pattern of unrepentant conduct inside the fellowship. Paul even says not to eat with such a person, which signals that table fellowship in the church expresses shared allegiance to Christ and his ways.

But as it is, I wrote to you not to associate with anyone who is called a brother who is a sexual sinner, or covetous, or an idolater, or a slanderer, or a drunkard, or an extortionist. Don’t even eat with such a person.

1 Corinthians 5:11 (WEB)

Verses 12-13: God Judges Those Outside

12 For what do I have to do with also judging those who are outside? Don’t you judge those who are within? 13 But those who are outside, God judges. “Put away the wicked man from among yourselves.”

1 Corinthians 5:12-13 (WEB)

Paul distinguishes between two groups. The church does not take on the role of judging outsiders, since God is the one who will judge them. Its responsibility is to exercise discernment and discipline over those who belong to the community and claim its identity. The closing words, which call for the wicked person to be removed, bring the chapter back to the practical action it has been building toward.

This distinction keeps the church from both extremes. It is not called to police the wider world, nor to ignore sin among its own members. It is called to keep its own life truthful, trusting God with the rest.

Key Themes in 1 Corinthians 5

• Holiness of the church: Paul insists that the community as a whole must reflect the purity that belongs to people redeemed by Christ.
• Discipline with restoration in view: The severe action described aims at the person’s spirit being saved on the day of the Lord, not at mere punishment.
• The spreading power of sin: The yeast image shows that tolerated wrongdoing affects the entire group, not just the individual.
• Christ as the Passover sacrifice: The church’s new life rests on Christ’s sacrificial death, which shapes how it lives.
• Distinguishing insiders from outsiders: The chapter separates the church’s responsibility toward its own members from God’s role in judging the world.

Lessons From 1 Corinthians 5 for Today

A church today might face a situation where a prominent member is living openly in a sin that the congregation quietly overlooks because no one wants to create conflict. Paul’s words challenge that silence. He does not call for gossip or public shaming, but for a sober recognition that tolerating unrepentant sin harms both the person and the whole fellowship. Leaders and members are asked to speak truthfully, in a spirit of prayer and humility, aiming at the person’s return rather than their exclusion.

The chapter also speaks to individual believers who feel pressure to cut off every friendship with people who do not share their faith. Paul’s clarification in verses 9-10 reminds us that Christians are called to live among unbelievers with love and witness. The line Paul draws is about the company we keep within the community that bears Christ’s name, where habitual, unrepentant sin must be addressed with seriousness and care.

Questions for Reflection

• What does the church lose when it treats open sin as a private matter that no one should mention?
• How can a community speak honestly about sin while still aiming at the restoration of the person involved?
• Where might a small amount of “yeast” be spreading in your own community or small group?
• How does remembering that Christ is our Passover change the way you approach holiness in daily life?

A Prayer From 1 Corinthians 5

Lord, you have made us a new batch of dough through the sacrifice of Christ, our Passover lamb. Forgive the pride that tolerates what should grieve us, and give us the courage to speak truthfully when sin is hurting the people we love. Help us to remove what corrupts our life together, so that we keep the feast with sincerity and truth. Let our discipline always point toward restoration, and let our holiness make the good news visible to the world. In Jesus’ name, Amen.

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