15 But if he does not listen, take one or two others along with you, that every word may be confirmed by the evidence of two or three witnesses.
16 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.
17 Truly, I say to you, whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven.
18 Again I say to you, if two of you agree on earth about anything they ask, it will be done for them by my Father in heaven.
19 For where two or three are gathered in my name, there am I in the midst of them."
20 Then Peter came up and said to him, "Lord, how often shall my brother sin against me, and I forgive him? As many as seven times?"