“If your brother sins against you, you should confront him about it in private. If he listens to you, you have won him back. But if he won’t listen to you, then take one or two other people with you to speak with him again, so that these witnesses may be able to establish the truth. If he still won’t listen, then tell the congregation. If he won’t listen even then, treat him as you would treat an unbeliever or a tax collector.”

“I’ll share this truth with you – whatever you unite on earth is united in heaven, and whatever you let go on earth is let go in heaven. Here’s another truth – if two of you agree about anything that you pray for then my Father in heaven will do it for you. Wherever two or three people gather together in my name, I am there with them.”

MT 18:15-20