Matthew 18:10-15

10See that you do not look down on any of these little ones. For I tell you that their angels in heaven always see the face of My Father in heaven.1

12What do you think? If a man has a hundred sheep and one of them goes astray, will he not leave the ninety-nine on the hills and go out to search for the one that is lost? 13And if he finds it, truly I tell you, he rejoices more over that one sheep than over the ninety-nine that did not go astray. 14In the same way, your Father in heaven is not willing that any of these little ones should perish.

15If your brother sins against you,2 go and confront him privately. If he listens to you, you have won your brother over.