17 Definitive Lessons from 1 Corinthians 5: Tolerated Sin, Church Discipline, and the Purpose Behind Paul’s Hardest Command

Christians have been taught to be careful about judging one another, and there are good reasons behind that caution. Many can quote “judge not” without hesitation, and plenty have watched a congregation try to police itself and do real damage in the process.

Then there is this chapter. The lessons from 1 Corinthians 5 come out of thirteen verses where Paul takes the other side of that argument, presses it hard, and never once softens what he is asking.

What surprises most readers is where he anchors it. The reason he gives for the severest instruction in the whole letter turns out to be the gentlest sentence in it: Christ our passover is sacrificed for us.

Brief Summary: Lessons from 1 Corinthians 5

Paul has heard that a man in the Corinthian church is in an ongoing relationship with his father’s wife, and that the congregation has done nothing about it. Instead of grieving, they are proud. Paul delivers his verdict from a distance, tells the gathered church to remove the man, and explains why with an image his readers knew from the Feast of Unleavened Bread: a little leaven works through the whole lump, so the old leaven has to go. He then clears up a misreading of an earlier letter, marking the line between how believers treat one another and how they treat the world outside.

Lesson 1: A Church Can Sink Below the Standard of the World Around It (1 Corinthians 5:1)

1 Corinthians 5:1: “It is reported commonly that there is fornication among you, and such fornication as is not so much as named among the Gentiles, that one should have his father’s wife.” (KJV)

Paul opens without a greeting or a warm-up. Word had travelled, and it had travelled openly. A man in the church was in an ongoing relationship with his father’s wife, which is the Bible’s way of naming a stepmother rather than a birth mother, the same wording used in Leviticus 18:8.

Read also: Book of 1 Corinthians Summary by Chapter

The measure Paul reaches for is the city itself. Commentators point to Cicero, who treated this kind of case as an almost unheard-of crime, and Roman law forbade the relationship outright. Corinth carried a reputation across the ancient world for loose living, and even by that standard this would have raised eyebrows in the city while the church had learned to live with it.

That is a strange place for a congregation to end up, and it rarely happens by decision. It happens by degrees, as a group of people stops comparing itself to anything outside its own walls and starts grading its behaviour against its own history.

The moment a believer or a church loses the ability to see itself the way an outsider sees it, the outsider becomes the more honest witness. God did not intend the world to be the church’s conscience, and when it ends up playing that role, something has already gone wrong inside.

Lesson 2: Pride Is the Reason the Sin Was Still There (1 Corinthians 5:2, 6)

1 Corinthians 5:2, 6: “And ye are puffed up… Your glorying is not good.” (KJV)

Arrogance is the one thing Paul names twice in this chapter, once before he gives his instruction and once after it. That placement puts the congregation’s mood, rather than the man’s sin, at the centre of the argument.

The Bible says they were puffed up. It never explains what they were proud of, and it is worth leaving that gap open instead of filling it with a guess. What the letter does show is that this was not new for them. Three verses earlier Paul had already written, “Now some are puffed up, as though I would not come to you” (1 Corinthians 4:18). The same swelling that made them dismissive of an apostle made them casual about a scandal.

Pride and blindness travel together more often than most of us expect. A person who is impressed with their own spiritual condition tends to lose the ability to be shocked by their own behaviour, and a church can catch the same condition. Where has confidence in your walk with God started to function as a reason not to examine it?

Lesson 3: Grief Is What Moves a Church to Act (1 Corinthians 5:2)

1 Corinthians 5:2: “And ye are puffed up, and have not rather mourned, that he that hath done this deed might be taken away from among you.” (KJV)

You have probably noticed how much easier it is to be angry about sin than to be sad about it. Anger is quick, it feels like conviction, and it costs almost nothing.

Paul asks for something slower and far more costly. He does not say they should have argued, voted, or issued a statement. He says they should have mourned, and then he attaches the removal to the mourning as its natural outcome. The grief was meant to be the thing that produced the action. James writes in the same direction: “Be afflicted, and mourn, and weep” (James 4:9).

That order matters for anyone who has ever seen discipline handled badly. A church that removes someone without grieving has done half of what Paul asked and the wrong half. Where sorrow over sin is missing, correction turns into housekeeping, and the person being corrected can feel the difference immediately.

It works the same way inside one heart. Sin that only irritates you rarely gets dealt with, because irritation runs out. Sorrow over sin has a longer reach, and it tends to move a person toward God rather than away from the discomfort. The Corinthians were spared nothing by refusing to feel this; they only postponed it.

Lesson 4: Discipline Belongs to the Gathered Church, Not to a Private Grudge (1 Corinthians 5:3-4)

1 Corinthians 5:3-4: “For I verily, as absent in body, but present in spirit, have judged already… In the name of our Lord Jesus Christ, when ye are gathered together, and my spirit, with the power of our Lord Jesus Christ.” (KJV)

Paul is hundreds of miles away and he still speaks with certainty about what should happen. Then he describes the setting for it, and every detail of that setting is public. The church is gathered. The name invoked is the Lord Jesus Christ. The power called on is his, not theirs.

Read also: Lessons From Matthew 18

Two counterfeits die on that verse. The first is the silent freeze-out, where an offended believer withdraws without a word and calls it obedience. The second is the administrative removal, where a name comes off a list and nobody is told anything. Both avoid the room Paul insists on.

The authority also belongs to Christ rather than to the congregation, which changes the temperature of the whole thing. A church acting in its own name can become a mob within an afternoon. Paul writes elsewhere about the posture required: “restore such an one in the spirit of meekness; considering thyself, lest thou also be tempted” (Galatians 6:1).

Refuse the private version of this, whichever direction you are tempted to take it, and let anything this serious happen in the light where it belongs.

Lesson 5: The Hardest Command in the Chapter Ends With the Word “Saved” (1 Corinthians 5:5)

1 Corinthians 5:5: “To deliver such an one unto Satan for the destruction of the flesh, that the spirit may be saved in the day of the Lord Jesus.” (KJV)

Is there a more troubling sentence in Paul’s letters? Readers have stopped at this verse for centuries, and it deserves the pause.

Careful interpreters have long read “the destruction of the flesh” in two main ways. Some take it as the breaking of the man’s sinful nature, since Paul chose a word for flesh rather than one for the body. Others take it as real physical affliction permitted by God. Scripture does not settle the question in this verse, and it is more honest to leave it where Paul left it than to hand the reader a certainty the text withholds.

What Paul does settle is the aim. The sentence ends in a purpose clause, and the purpose is rescue: “that the spirit may be saved in the day of the Lord Jesus.” Whatever else is happening here, it is happening in hope. Paul used similar language about two other men so “that they may learn not to blaspheme” (1 Timothy 1:20), which is correction with a future in view.

That single clause is also a test, and some readers need it more than others. If you have been on the receiving end of church discipline, or watched someone you love go through it, the question to ask is whether the people involved wanted you back. Where that hope was absent, what happened may have carried this chapter’s language without carrying its heart.

The severity here is a mercy aimed at a man’s eternity. Correction that costs this much is the work of a God who intends to keep what he paid for.

Lesson 6: Sin Never Stays Where You Left It (1 Corinthians 5:6)

1 Corinthians 5:6: “Your glorying is not good. Know ye not that a little leaven leaveneth the whole lump?” (KJV)

Paul answers the obvious objection before anyone raises it. Why should one man’s private arrangement concern an entire congregation? Because leaven does not stay in the corner of the dough where it was placed.

Everything turns on “Know ye not.” He is quoting something they already believed, which means the failure at Corinth was never a shortage of information. Paul uses the same proverb in Galatians 5:9 about false teaching rather than tolerated sin, so the principle runs wider than one kind of problem. Whatever is allowed to sit in a body of believers tends to work outward through it.

The same thing happens on a smaller scale in a single life. A compromise kept in one room rarely stays in that room, because the conscience that learned to excuse it there has learned a skill it can use anywhere. What have you been treating as contained that has already begun to spread?

Lesson 7: You Are Told to Clean House Because You Have Already Been Made Clean (1 Corinthians 5:7)

1 Corinthians 5:7: “Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened.” (KJV)

Order is everything in this verse, and most of us have it backwards. Paul does not tell the Corinthians to purge the leaven so that they can become unleavened. He tells them to purge it because they already are.

Read also: Is Grace a License to Sin

The picture comes from the household search before Passover, when leaven was hunted out of the house and removed (Exodus 12:15, 12:19). God had already claimed those homes. The searching followed the claim rather than earning it.

Christian obedience works the same way, and both halves of that have to stay standing. Holiness is never the price of belonging to God, so no believer cleans house hoping to be accepted. And the command is still a command. Paul does not hand them their standing and then excuse them from the work; he hands them their standing and tells them to go and match it.

A believer who has stopped searching the house has misunderstood what the blood bought. A believer who searches it in fear has misunderstood the same thing from the other side. The verse hands you your security and your assignment in the same breath.

Lesson 8: Christ Our Passover Is Why Any of This Matters (1 Corinthians 5:7)

1 Corinthians 5:7: “For even Christ our passover is sacrificed for us.” (KJV)

Paul could have grounded the whole chapter in the church’s reputation. He grounds it in a lamb instead.

In Exodus, a household was spared because a lamb died and its blood marked the door. Paul takes that whole scene and puts one name in it. Several commentators note that the verb behind “is sacrificed” reads as a past tense in the original, “was sacrificed,” which points to something finished rather than something ongoing. The price has already been paid in full.

That reframes tolerated sin completely. The question is no longer whether a church looks respectable, or whether a believer can get away with something. The question is what the Lamb paid for, and whether a person redeemed at that cost is going to live as though the cost were small.

Paul assumes a great deal about his readers here. He mentions the cross in passing, as the ground they already stand on, and expects the rest of his argument to follow from it without further defence. That is how the cross is meant to work in a believer’s thinking, sitting underneath the ordinary decisions rather than appearing only in the emotional ones.

Holiness stops being a rule and starts being a response.

Lesson 9: Holiness Is a Feast You Keep, Not Only a Sin You Remove (1 Corinthians 5:8)

1 Corinthians 5:8: “Therefore let us keep the feast… with the unleavened bread of sincerity and truth.” (KJV)

Many of us picture holiness as a long list of things we no longer do, and then wonder why the walk with God starts to feel thin.

Paul names what goes in the place of what comes out. He calls the Christian life a feast, and he puts two things on the table: sincerity and truth. Sincerity is the end of managing appearances, a body of believers who have stopped performing for one another. Truth is what fills the room that pretence used to occupy. Both are additions, not subtractions, and a church can be scrupulous about what it removes while never getting round to either.

The feast image says something about God’s intentions. He is hosting a table rather than running a clean-up operation. The purging in the previous verse exists to protect a table, and the reason the leaven has to go is that it spoils what God means his people to enjoy together.

Keep the feast this week rather than only guarding the door. Something has to go on the table where the leaven used to sit, and Paul has already said what it is.

Lesson 10: The Second Leaven in the Lump Is Malice and Wickedness (1 Corinthians 5:8)

1 Corinthians 5:8: “…neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.” (KJV)

Most of this chapter circles a sexual scandal. Then Paul names a second leaven in the same breath as the first, and the words he chooses for it are malice and wickedness.

Read also: Is Malice a Sin

The removal still stands, and nothing in this verse walks it back. What Paul adds is that the lump held more than one kind of leaven, and the congregation reading the whole situation as somebody else’s problem was carrying the second kind.

Malice is the settled ill will that keeps a record, enjoys a rival’s fall, and speaks about people rather than to them. It can leaven a church every bit as thoroughly as scandal does, and it draws no crowd.

There is a particular danger in a chapter like this one. A reader can finish it feeling clean because they have never done what the Corinthian man did, while carrying something Paul puts in the same sentence as leaven.

So the honest question is not whether you would have tolerated that man. Where has ill will toward another believer been living in you long enough that you have stopped calling it sin?

Lesson 11: God Never Asked You to Leave the World (1 Corinthians 5:9-10)

1 Corinthians 5:9-10: “I wrote unto you in an epistle not to company with fornicators: Yet not altogether with the fornicators of this world… for then must ye needs go out of the world.” (KJV)

Have you ever had your own words quoted back to you in a way you never meant them? Paul had written to Corinth before, and that earlier letter has not survived, since “First Corinthians” only means the first of the two we still have. Something in it had been taken further than he intended, so he stops the argument and puts the limits on his own instruction.

His reasoning is almost blunt. If separating from immoral people meant separating from immoral people generally, a Christian would have to leave the planet to obey. The command was never designed to strip a believer out of ordinary human life.

Jesus lived exactly that way. When the scribes and Pharisees complained that he ate with tax collectors and sinners, his answer was “They that are whole need not a physician; but they that are sick” (Luke 5:31). The table Paul restricts inside the church is the same table Jesus kept open outside it.

The people around you who have no interest in Christ, whoever they are and however you came to know them, are not a compromise. They may be the whole reason God has placed you where you are.

Lesson 12: The List Is Longer Than the Sin That Started It (1 Corinthians 5:11)

1 Corinthians 5:11: “…if any man that is called a brother be a fornicator, or covetous, or an idolator, or a railer, or a drunkard, or an extortioner; with such an one no not to eat.” (KJV)

How many churches have you heard of that removed someone for immorality, and how many that ever acted about a tongue?

Paul lists six things and gives them one instruction. Sexual sin heads the list because it opened the chapter, and then he sets a greedy heart, an idolatrous heart, an abusive mouth, a drunkard and a swindler right beside it. The sins of the mouth and the wallet are in the same sentence as the scandal. Covetousness in particular is no small item to Paul, who elsewhere calls the covetous man “an idolater” (Ephesians 5:5).

That ought to unsettle the way most of us rank sin. A congregation can be scandalised by one item on this list while a man who tears people apart with his words stays comfortable in leadership for twenty years.

And if you have found yourself somewhere in those six words, read one chapter further before you close the Bible. Paul repeats almost the same list and adds this: “And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus” (1 Corinthians 6:11). The list describes what grace has already answered.

Lesson 13: What You Say by Sitting Down at a Table (1 Corinthians 5:11)

1 Corinthians 5:11: “…with such an one no not to eat.” (KJV)

Of all the sanctions Paul could have named, he names a meal. He had sermons, public statements and letters available to him, and he reached instead for the ordinary act of sitting down to eat with someone.

Read also: Importance of Repentance in the Bible

Commentators take this to cover private meals, the church’s common meals, and by extension the Lord’s table, because eating together in that world carried an endorsement that a modern lunch does not. Sitting down with someone said something about them in public. Paul is asking the church to stop saying it while the sin continues.

This is also the point where believers do the most damage, so Paul’s own guard matters. Writing to another church about withdrawing from a disobedient brother, he adds, “Yet count him not as an enemy, but admonish him as a brother” (2 Thessalonians 3:15). Withdrawal that hopes for a return is one thing. Contempt is another, and the second was never authorised.

Ask yourself, before you ever step back from anyone, whether you still want them back at the table. Where that desire has gone, something has gone wrong in you as well as in them.

Lesson 14: This Was Never Written About the Believer Who Falls and Grieves (1 Corinthians 5:1, 11)

1 Corinthians 5:1, 11: “…that one should have his father’s wife… if any man that is called a brother be a fornicator.” (KJV)

If reading this chapter has made you afraid for yourself, look at the grammar before you carry that fear any further.

Verse 1 describes an arrangement a man is in, not an act he committed once. Verse 11 describes what somebody is, rather than what they did on a bad day. The word many use for this is unrepentant, and that is a fair reading of the grammar rather than a word the verses actually use. The other qualifier is just as important: Paul writes “called a brother,” so the whole instruction turns on a person’s own claim to belong to Christ.

The believer who falls and grieves is a different case entirely, and Scripture treats them differently. That said, this cuts both ways. A church can hide behind “we are all sinners” for years while something settled and open goes unaddressed, and that is not mercy either. Paul asks for the wisdom to tell the two apart.

Lesson 15: The Church Was Never Told to Stop Judging Itself (1 Corinthians 5:12)

1 Corinthians 5:12: “For what have I to do to judge them also that are without? do not ye judge them that are within?” (KJV)

Two questions, and Paul asks the second one as though the answer were obvious. He assumes a kind of judgment inside the church that many believers have been taught the Bible forbids.

The verse most often set against this one is Matthew 7:1, “Judge not, that ye be not judged.” Read the rest of that passage and the tension eases. Jesus goes on to talk about the beam in your own eye and the mote in your brother’s, and he ends by telling you to remove your own first “and then shalt thou see clearly to cast out the mote out of thy brother’s eye” (Matthew 7:5).

The thing he forbids there is hypocritical, self-exempting judgment. What he expects once the beam is gone is clear sight and a hand held out to a brother.

In the same Gospel that records Jesus saying “judge not,” he also says, “Judge not according to the appearance, but judge righteous judgment” (John 7:24). Both are his words, and they are talking about different things.

So the question was never whether Christians judge. Is the judgment you are exercising the kind that has already dealt honestly with yourself?

Lesson 16: The People Outside the Church Are Not Your Assignment (1 Corinthians 5:13)

1 Corinthians 5:13: “But them that are without God judgeth. Therefore put away from among yourselves that wicked person.” (KJV)

There is a version of Christian seriousness that runs loudest about the sins of people who never claimed Christ and softest about the sins of people who did.

Read also: Bible 1 Corinthians 5 Quiz with Answers

Paul’s instruction runs the other way. The outsider still has a judge, and Paul says plainly who it is: “them that are without God judgeth.” Peter puts the same priority from the other end, writing that “judgment must begin at the house of God” (1 Peter 4:17). What Paul takes away is the church’s warrant to take that job on itself.

There is a mercy in that for the believer as well as for the world. Being outraged at people who have never claimed Christ is exhausting work, and Scripture never assigned it to you. Expecting a person who does not know God to live as though they did is asking for a harvest from a field nobody planted.

Leave the world to the God who will handle it, and give that attention instead to the place you actually belong to and can actually help.

Lesson 17: Every Command in This Chapter Is Written to You, Not Just Your Pastor (1 Corinthians 5:13)

1 Corinthians 5:13: “Therefore put away from among yourselves that wicked person.” (KJV)

Run through the chapter and count the commands. Mourn. Purge. Keep the feast. Do not company with. Put away. Every one of them is plural, addressed to a congregation, and not one of them is aimed at a single leader.

Paul closes with wording that runs all through the law. “So thou shalt put the evil away from among you” appears again and again in Deuteronomy as the whole community’s charge (Deuteronomy 17:7). He hands that same charge to a church rather than to a committee.

For most readers that will never mean chairing a meeting or removing anyone from anything. It means the ordinary things a member can do and usually does not: telling the truth to a friend who has stopped wanting to hear it, refusing to carry gossip about a situation you are not part of, praying for the person everyone else has written off, and going to someone yourself instead of waiting for the leadership to notice.

Start with whichever name came to mind while you read that list.

Frequently Asked Questions About 1 Corinthians 5

Related Articles to Read Next

• Lessons From the 7 Churches in Revelation
• Book of 2 Corinthians Summary by Chapter
• Sanctification Vs Holiness
• Lessons From Exodus 12
• Bible 1 Corinthians 4 Quiz with Answers

Conclusion

The chapter that looks least like grace turns out to be built on it. Every hard word Paul says here stands on one sentence about a Lamb who was already sacrificed, and every removal he asks for is aimed at a man being saved in the end. The lessons from 1 Corinthians 5 leave a believer holding two things at once: a seriousness about sin that will not be argued down, and a hope for people that refuses to give anyone up. Read the chapter again with the leaven Paul actually names in view, malice and wickedness, and let the search begin in your own house before it goes anywhere else.