Mat 18:15 “If your brother sins against you, go and tell him his fault, between you and him alone. If he listens to you, you have gained your brother.

Mat 18:16 But if he does not listen, take one or two others along with you, that every charge may be established by the evidence of two or three witnesses.

Mat 18:17 If he refuses to listen to them, tell it to the church. And if he refuses to listen even to the church, let him be to you as a Gentile and a tax collector.”