Matthew 18:15-18

“Now if your brother sins against you, go correct him between you and him alone. If he listens to you, you have gained your brother. But if he does not listen, take with you in addition one or two others, so that by the testimony of two or three witnesses every matter may be established. And if he refuses to listen to them, tell it to the church. But if he refuses to listen to the church also, let him be to you as a Gentile and a tax collector. “Truly I say to you, whatever you bind on earth will be bound in heaven, and whatever you release on earth will be released in heaven.