Matthew 18:15-18

15“Now 1if your brother sins2, go and 3show him his fault 4in private; if he listens to you, you have gained your brother. 16But if he does not listen to you, take one or two more with you, so that 5on the 6testimony of two or three witnesses every 7matter may be confirmed. 17And if he refuses to listen to them, 8tell it to the church; and if he refuses to listen even to the church, 9he is to be to you as 10a Gentile and 11a tax collector. 18Truly I say to you, 12whatever you 13bind on earth 14shall have been bound in heaven; and whatever you 15loose on earth 16shall have been loosed in heaven.