1It is actually reported that there is sexual immorality among you, and of a kind that is not tolerated even among pagans, for a man has his father’s wife. (Le 18:8; De 22:30; De 27:20; 2Co 12:21)2And you are arrogant! Ought you not rather to mourn? Let him who has done this be removed from among you. (1Co 4:6; 2Co 7:7)3For though absent in body, I am present in spirit; and as if present, I have already pronounced judgment on the one who did such a thing. (Col 2:5; 1Th 2:17)4When you are assembled in the name of the Lord Jesus and my spirit is present, with the power of our Lord Jesus, (Mt 16:19; Mt 18:18; Joh 20:23; 2Co 13:3; 2Co 13:10; 2Th 3:6; 1Ti 5:20)5you are to deliver this man to Satan for the destruction of the flesh, so that his spirit may be saved in the day of the Lord.
1. Some manuscripts add Jesus
 (Job 2:6; Pr 23:14; Ac 26:18; 1Co 1:8; 1Ti 1:20)6Your boasting is not good. Do you not know that a little leaven leavens the whole lump? (1Co 5:2; 1Co 15:33; Ga 5:9; Jas 4:16)7Cleanse out the old leaven that you may be a new lump, as you really are unleavened. For Christ, our Passover lamb, has been sacrificed.8Let us therefore celebrate the festival, not with the old leaven, the leaven of malice and evil, but with the unleavened bread of sincerity and truth. (Ex 12:15; De 16:3; Mt 16:6; Mt 16:12; Mr 8:15; Lu 12:1)9I wrote to you in my letter not to associate with sexually immoral people— (2Co 6:14; Eph 5:11; 2Th 3:6; 2Th 3:14)10not at all meaning the sexually immoral of this world, or the greedy and swindlers, or idolaters, since then you would need to go out of the world. (Joh 17:15; 1Co 6:9; 1Co 10:27; Eph 5:5; Col 3:5)11But now I am writing to you not to associate with anyone who bears the name of brother if he is guilty of sexual immorality or greed, or is an idolater, reviler, drunkard, or swindler—not even to eat with such a one. (2Th 3:6)12For what have I to do with judging outsiders? Is it not those inside the church