1 Corinthians 5: The Sin the Church Was Proud Of

Chapter 5 opens with a specific, ugly report: a man is sleeping with his father’s wife, immorality “not even named among the Gentiles” (5:1). What stops Paul cold isn’t only the act — it’s the congregation’s reaction. They’re “puffed up,” not mourning (5:2). Somewhere, tolerance had been mistaken for maturity.

Read it in the terminal: bible 1corinthians 5

A little yeast

Paul’s central image is domestic and precise: “Don’t you know that a little yeast leavens the whole lump?” (5:6). Yeast doesn’t stay contained to its corner of the dough — that’s its nature. Paul’s point isn’t that this one man’s sin will personally corrupt everyone; it’s that a community’s willingness to shrug at sin, once established as a habit, doesn’t stay confined either.

Not the world’s job to judge

Paul draws a boundary that gets misquoted constantly: he isn’t calling for Christians to police the outside world’s morality — he’d have to leave the world entirely to avoid all its immorality (5:10). The judgment he’s calling for is internal: “Don’t you judge those who are within?” (5:12). This is a chapter about the church’s responsibility for its own household, not a mandate to judge outsiders.

Removed for the sake of restoration

“Purge out the old yeast, that you may be a new lump, even as you are unleavened.” — 1 Corinthians 5:7

The removal Paul calls for (5:13) isn’t described as punishment for its own sake — earlier in the chapter he frames it as handing someone over so that, ultimately, the spirit might be saved (5:5). Hard love, aimed at restoration, not exile for its own sake.

Questions for study

1. Where does your own community confuse tolerance with love, the way Corinth apparently did?
2. How do you hold together “don’t judge outsiders” (5:10, 12-13) with “do judge within the church” without those two collapsing into hypocrisy?
3. What would loving discipline aimed at someone’s restoration look like in practice, rather than as punishment?

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