Matthew 18:15-17

Lamsa(i) 15 Now then, if your brother is at fault with you, go and rebuke him alone; if he listens to you, then you have won your brother. 16 But if he will not listen to you, take one or two with you, because at the mouth of two or three witnesses every word is sustained. 17 And if he will not listen to them, tell the congregation; and if he will not listen to the congregation, then regard him as a publican and a heathen.