1st Corinthians 5:6

3 For I most assuredly, as being absent in body but present in spirit, have already, as though I were present, judged him who has done this thing.

4 In the name of our Lord Jesus Christ, you being gathered together, and my spirit, with the power of our Lord Jesus Christ,

5 are to deliver such a one to Satan for the destruction of the flesh, that the spirit may be saved in the day of the Lord Jesus.

6 Your boasting is not good. Don`t you know that a little yeast leavens the whole lump?

7 Purge out the old yeast, that you may be a new lump, even as you are unleavened. For indeed Christ, our Passover, has been sacrificed in our place.

8 Therefore let us keep the feast, not with old yeast, neither with the yeast of malice and wickedness, but with the unleavened bread of sincerity and truth.

9 I wrote to you in my letter to have no company with sexual sinners;