Matthew 18

If your brother or sister sins, go and point out their fault, just between the two of you. If they listen to you, you have won them over.
Matthew 18:15 sin speaking listening
If they still refuse to listen, tell it to the church; and if they refuse to listen even to the church, treat them as you would a pagan or a tax collector.
Matthew 18:17 church sin listening

For where two or three gather in my name, there am I with them.
Matthew 18:20 Jesus community prayer
Then Peter came to Jesus and asked, “Lord, how many times shall I forgive my brother or sister who sins against me? Up to seven times?” Jesus answered, “I tell you, not seven times, but seventy-seven times.”
Matthew 18:21-22 forgiveness neighbor sin