1 Corinthians 5:4-8

4So when you are assembled and I am with you in spirit, and the power of our Lord Jesus is present,

5hand this man over to Satan for the destruction of the flesh, In contexts like this, the Greek word for flesh (sarx) refers to the sinful state of human beings, often presented as a power in opposition to the Spirit. Or of his body so that his spirit may be saved on the day of the Lord. 6Your boasting is not good. Don’t you know that a little yeast leavens the whole batch of dough? 7Get rid of the old yeast, so that you may be a new unleavened batch—as you really are. For Christ, our Passover lamb, has been sacrificed.

8Therefore let us keep the Festival, not with the old bread leavened with malice and wickedness, but with the unleavened bread of sincerity and truth.