1 Corinthians 5:4-7

5:4 When you gather together in the name of our Lord Jesus, and I am with you in spirit, along with the power of our Lord Jesus, 5:5 turn this man over to Satan for the destruction of the flesh, so that his spirit may be saved in the day of the Lord.

5:6 Your boasting is not good. Don’t you know that a little yeast affects the whole batch of dough? 5:7 Clean out the old yeast so that you may be a new batch of dough – you are, in fact, without yeast. For Christ, our Passover lamb, has been sacrificed.