1 Corinthians 5
9I wrote to you in my epistle not to keep company with sexually immoral people. 10Yet I certainly did not mean with the sexually immoral people of this world, or with the covetous, or extortioners, or idolaters, since then you would need to go out of the world. 11But now I have written to you not to keep company with anyone named a brother, who is sexually immoral, or covetous, or an idolater, or a reviler, or a drunkard, or an extortioner--not even to eat with such a person. 12For what have I to do with judging those also who are outside? Do you not judge those who are inside? 13But those who are outside God judges. Therefore "put away from yourselves the evil person."
1 Corinthians 6
1Dare any of you, having a matter against another, go to law before the unrighteous, and not before the saints? 2Do you not know that the saints will judge the world? And if the world will be judged by you, are you unworthy to judge the smallest matters? 3Do you not know that we shall judge angels? How much more, things that pertain to this life? 4If then you have judgments concerning things pertaining to this life, do you appoint those who are least esteemed by the church to judge? 5I say this to your shame. Is it so, that there is not a wise man among you, not even one, who will be able to judge between his brethren?