Leviticus 19:17-18

19:17 You must not hate your brother in your heart. You must surely reprove your fellow citizen so that you do not incur sin on account of him. 19:18 You must not take vengeance or bear a grudge against the children of your people, but you must love your neighbor as yourself. I am the Lord.

Proverbs 25:9

25:9 When you argue a case with your neighbor,

do not reveal the secret of another person,

Matthew 18:15

Restoring Christian Relationships

18:15 “If your brother sins, go and show him his fault when the two of you are alone. If he listens to you, you have regained your brother.