1 Corinthians 5:10-13
Good News Translation
10 Now I did not mean pagans who are immoral or greedy or are thieves, or who worship idols. To avoid them you would have to get out of the world completely. 11 What I meant was that you should not associate with a person who calls himself a believer but is immoral or greedy or worships idols or is a slanderer or a drunkard or a thief. Don't even sit down to eat with such a person.
12-13 (A)After all, it is none of my business to judge outsiders. God will judge them. But should you not judge the members of your own fellowship? As the scripture says, “Remove the evil person from your group.”Read full chapter