1 Corinthians 5:7-11

Clean out the old leaven so that you may be a new lump, just as you are in fact unleavened. For Christ our Passover also has been sacrificed.

Therefore let’s celebrate the feast, not with old leaven, nor with the leaven of malice and wickedness, but with the unleavened bread of sincerity and truth.

I wrote to you in my letter not to associate with sexually immoral people;

I did not at all mean with the sexually immoral people of this world, or with the greedy and swindlers, or with idolaters, for then you would have to leave the world.

But actually, I wrote to you not to associate with any so-called brother if he is a sexually immoral person, or a greedy person, or an idolater, or is verbally abusive, or habitually drunk, or a swindler—not even to eat with such a person.