1 Corinthians 5:1-10

1 Your own members are aware that there is sexual sin going on among them. This kind of sin is not even heard of among unbelievers--a man is actually married to his father's wife.
2 You're being arrogant when you should have been more upset about this. If you had been upset, the man who did this would have been removed from among you.
3 Although I'm not physically present with you, I am with you in spirit. I have already judged the man who did this as though I were present with you.
4 When you have gathered together, I am with you in spirit. Then, in the name of our Lord Jesus, and with his power,
5 hand such a person over to Satan to destroy his corrupt nature so that his spiritual nature may be saved on the day of the Lord.
6 It's not good for you to brag. Don't you know that a little yeast spreads through the whole batch of dough?
7 Remove the old yeast [of sin] so that you may be a new batch of dough, since you don't actually have the yeast [of sin]. Christ, our Passover lamb, has been sacrificed.
8 So we must not celebrate our festival with the old yeast [of sin] or with the yeast of vice and wickedness. Instead, we must celebrate it with the bread of purity and truth that has no yeast.
9 In my letter to you I told you not to associate with people who continue to commit sexual sins.
10 I didn't tell you that you could not have any contact with unbelievers who commit sexual sins, are greedy, are dishonest, or worship false gods. If that were the case, you would have to leave this world.