1 Corinthians 5:6

My Notes

What Does 1 Corinthians 5:6 Mean?

The Corinthian church is proud of its tolerance. A man in the congregation is sleeping with his father's wife — a level of immorality that even the pagan culture around them found shocking — and the church isn't just looking the other way. They're boasting about it. Their openness, their grace, their refusal to judge. Paul's response is blunt: your glorying is not good.

Then the metaphor: "Know ye not that a little leaven leaveneth the whole lump?" Every Jewish listener knew exactly what this meant. Leaven — yeast — was a pervasive agent. A tiny amount worked through an entire batch of dough until every part was affected. You couldn't contain it. You couldn't keep it in one corner. It spread by nature.

Paul is saying that tolerating flagrant, unrepentant sin in the community isn't generous. It's dangerous. Not because one person's sin is contagious like a cold, but because a community's posture toward sin shapes the community's character. When you celebrate what should grieve you, you're introducing leaven. The tolerance doesn't stay contained. It redefines what the community considers acceptable, and that redefinition spreads.

This isn't a call to police every private struggle. Paul is addressing public, unrepentant, flagrant sin that the community is boasting about rather than mourning. The problem isn't that someone sinned. The problem is that nobody cared — and they were proud of not caring.

Reflection Questions

• 1.What's the difference between genuine grace toward a struggling person and the kind of indifferent tolerance Paul is confronting here?
• 2.What has your community — your church, your friend group, your family — slowly normalized that would have been grieved a generation ago?
• 3.How do you hold together the call to 'not judge' with Paul's call to not tolerate flagrant, unrepentant sin? Where's the line?
• 4.Is there leaven in your own life — a 'small' compromise that's slowly reshaping what you consider acceptable?

Devotional

There's a version of grace that isn't grace at all — it's indifference dressed up in spiritual language. "Who am I to judge?" "We're all sinners." "Let's just love people." Those sentences are sometimes deeply true and sometimes deeply evasive. Paul is addressing the evasive version — the kind that watches someone destroy themselves and others and calls the watching "tolerance."

The leaven principle is about what you normalize. Every community has an unspoken standard of what's acceptable. When flagrant sin is not just tolerated but celebrated, that standard shifts. What was shocking yesterday becomes normal today and expected tomorrow. The leaven works silently, invisibly, relentlessly. You don't notice the shift until the whole lump has changed.

This isn't about being judgmental. Paul isn't asking you to patrol other people's lives or appoint yourself the morality police. He's asking you to care. To grieve what should be grieved. To refuse to celebrate what's destroying someone. There's a vast difference between extending grace to a struggling sinner and boasting about your acceptance of unrepentant destruction.

What are you normalizing? Not in other people's lives — in your own community, your own family, your own heart. What have you stopped being grieved by because it's been around so long it feels normal? The leaven works slowly. That's what makes it dangerous. By the time you notice, the whole lump has changed.

Commentary

Trusted original commentary from respected historical Bible scholars and theologians.

Cross References

Related passages throughout Scripture