1 Corinthians 5:7

The Text

Paul has just told the Corinthians that a little yeast works its way through the whole batch of dough. Now he draws the conclusion: clean out the old yeast so that you become a fresh lump, which is in fact what you already are, unleavened. And he gives the reason, not a moral one but a historical one: Christ, our Passover lamb, has already been slaughtered in our place. The command to purge rests entirely on something that has happened, once, outside of them.

The Core

Notice the order, because everything hangs on it. Paul does not say: purge out the yeast so that Christ may become your Passover. He says: purge, because Christ already is. The sacrifice is finished, in the past tense, done to him and for them. What follows is not the price of belonging but the shape of belonging. This is how grace works everywhere in Paul: God's decisive act comes first, and human action is the living out of a status already granted. Which means that church discipline, of all things, is here grounded in the gospel rather than in moral outrage. The Corinthians are not being told to earn purity. They are being told to stop contradicting themselves.

The Common Thread

Israel's founding night runs underneath this sentence. A lamb slaughtered, blood on the doorposts, death passing over the house, and bread baked without yeast because there was no time to wait for the dough to rise. Every spring for centuries Jewish households searched their homes for crumbs of leaven and burned them, reenacting the hurried exodus from slavery. Paul takes that entire machinery and says: the lamb has been slain, and it was Jesus. Not as a poetic comparison but as fulfillment. The exodus was always a rehearsal for a larger deliverance, and the Corinthian church, mostly Gentiles who never kept Passover in their lives, are now told they are in the middle of the real one. The house being searched is the congregation.

The Mirror

Here is the uncomfortable turn. The yeast Paul wants swept out is not only the sexual sin of chapter five, verse one; in the next verse he names it as malice and wickedness. So the search of the house is not restricted to the person everyone is already whispering about. It includes the pleasure you take in that whispering. It includes the way you handle a colleague who humiliated you, the quiet accounting you keep of your brother-in-law's failures, the arrogance verse two exposes, that strange pride a group can feel about its own tolerance. Yeast spreads invisibly and by contact. You do not decide to become sour. You simply leave the dough alone long enough.

The Profile

Corinth was a port city, a rebuilt Roman colony, socially competitive and status-obsessed. The believers there met in houses, ate together, and were held responsible for one another in a way that our membership rolls barely imitate. When Paul says the sin is not even named among the Gentiles, he is telling a mostly Gentile church that they have sunk below the standards of the pagans watching them. And then he hands them an identity almost none of them inherited: you are the unleavened people, this is your Passover, that Jewish festival belongs to you now. To Corinthian ears this was startling. The story of a slave nation's escape from Egypt had become their story, because the lamb of that story had become their Lord.

The Detail

Three words do the heavy lifting: even as you are unleavened. Paul could have written "so that you may become unleavened," and most of us read it that way out of habit. He does not. In Greek the phrase is a plain statement of fact, azumoi este, you are unleavened people. So the command and the description sit in the same breath, apparently contradicting each other. Become what you are. This is not clever wordplay; it is the engine of Christian ethics. You are not scrubbing yourself into a state God might eventually accept. You are removing what does not match what God has already declared true of you in Christ. The imperative has no life of its own apart from the indicative underneath it.

The Intertext

Exodus twelve is the obvious echo, and Paul assumes we hear it: the lamb without blemish, the blood, the seven days of unleavened bread that follow the meal. But the contrast worth noticing is with Jesus' own use of yeast in the parable of the kingdom, where a woman hides leaven in flour until the whole batch is risen. Same image, opposite direction. Influence spreads either way, silently and completely, and neither the kingdom nor corruption asks permission first. Paul's point in verse six is precisely that: don't you know that a little yeast leavens the whole lump. The question is not whether your community is being permeated by something. The question is by what.

Reflection

If the lamb has already been slaughtered, what am I still trying to pay for by my own effort?

Which yeast in my life do I excuse as small, and who else is already tasting it?

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