I wrote to you in an letter not to associate with sexually immoral people.
I did not mean the immoral people of this world, or the greedy and swindlers, or those who serve a false god: Otherwise you would have go out of the world.
But now I am writing you not to associate with anyone who claims to be a Believer who is sexually immoral, or greedy, an idolater, or verbally abusive, a drunkard, or swindler. Do not even eat with such a person.
God judges those that are not of the Body. Don’t you judge those that are within?
Put away from among yourselves those wicked persons. 1 Corin 5:9-13