Paul opened chapter 5 in shock: “I can hardly believe the report…” (1 Corinthians 5:1, NLT). He was appalled to hear of blatant sexual immorality between a man and his father’s wife (likely his stepmother, NLT) in the Corinthian church—something even pagans found unacceptable. Whether his father was still alive or not, the sin was outrageous and a direct violation of God’s law (Leviticus 20:11).
What shocked Paul even more was the church’s reaction—they were proud of their tolerance (5:2). Instead of grieving over this sin, they celebrated their “open-mindedness.” Paul urged them to mourn, because unrepentant sin harms both the sinner and the church. The proper response was to remove the man from fellowship—a step as serious as excommunication, which in the Old Testament paralleled capital punishment for such sins.
Paul made it clear that distance did not prevent him from making a judgment (5:3). Though absent physically, he was present “in spirit” and had already decided the man should be removed. Church discipline, Paul explained, is to be carried out when the congregation is gathered “in the name of the Lord Jesus” with the power of the Holy Spirit present (5:4). The man was to be handed over to Satan’s realm—excluded from Christian fellowship—not to destroy him forever, but so that his sinful nature would be broken and his spirit ultimately saved on the day of the Lord (5:5). Discipline, though painful, is always meant to be redemptive.
Paul illustrated this with the image of leaven in dough (5:6–8). Just as a small amount of yeast spreads through the whole batch, unrepentant sin corrupts the entire church if tolerated. Christ, our Passover Lamb, has been sacrificed for us; therefore, the church must remove the “old leaven” of sin and live in sincerity and truth. Just as the Jews removed all yeast during Passover, Christians must remove all forms of wickedness—especially the kind of arrogance and malice that undermines holiness and unity.
Paul then clarified a misunderstanding from an earlier letter (5:9–10). When he told them not to associate with sexually immoral people, he did not mean unbelievers in the world—otherwise, Christians would have to leave the world entirely. The command was about those inside the church who claimed to be believers but persisted in unrepentant sin. Such people should not even be eaten with (5:11).
Finally, Paul reminded them that God will judge those outside the church, but believers have a responsibility to judge those within (5:12–13). Persistent, public, unrepentant sin must be confronted for the Corinthians, that meant expelling the man. Using Old Testament legal language, Paul showed that this was not optional—purity in God’s people demanded action.
Truths and Lessons for Today
1. Tolerance Is Not the Same as Love
The Corinthians confused acceptance with love, but true love confronts sin for the good of the sinner and the health of the church.
🡲 Application: When faced with sin in the church, pray for a heart that grieves and acts in love rather than ignoring the issue.
📖 “Shouldn’t you be mourning in sorrow and shame? And you should remove this man from your fellowship.” (1 Corinthians 5:2, NLT)
2. Unrepentant Sin Spreads Like Yeast
A single unchecked sin can corrupt the whole body, just as yeast works through an entire batch of dough.
🡲 Application: Guard your own life and your church community by quickly addressing anything that could grow into a larger spiritual problem.
📖 “Don’t you realize that this sin is like a little yeast that spreads through the whole batch of dough?” (1 Corinthians 5:6, NLT)
3. Church Discipline Is Meant to Restore, Not Destroy
Paul’s goal in removing the man from fellowship was that he might repent and be saved—not to cast him away forever.
🡲 Application: If you must confront someone in sin, keep restoration as the ultimate goal, showing grace alongside truth.
📖 “Then you must throw this man out and hand him over to Satan so that his sinful nature will be destroyed and he himself will be saved on the day the Lord returns.” (1 Corinthians 5:5, NLT)
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