For what have I to do with judging those also who are outside? Do you not judge those who are inside?
1 Corinthians 5:12
Surrounding context
5:11 But 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.
5:12 For what have I to do with judging those also who are outside? Do you not judge those who are inside?
5:13 But those who are outside God judges. Therefore "put away from yourselves the evil person."