Matthew 18:17

Even so it is not the will of your Father who is in heaven that one of these little ones should perish.

“If your brother sins against you, go, show him his fault between you and him alone. If he listens to you, you have gained back your brother.

But if he doesn’t listen, take one or two more with you, that at the mouth of two or three witnesses every word may be established.

Most certainly I tell you, whatever things you bind on earth will have been bound in heaven, and whatever things you release on earth will have been released in heaven.

Again, assuredly I tell you, that if two of you will agree on earth concerning anything that they will ask, it will be done for them by my Father who is in heaven.

For where two or three are gathered together in my name, there I am in the middle of them.”