Proverbs 28:23He that rebuketh a man afterwards shall find more favour than he that flattereth with the tongue.
Leviticus 19:17Thou shalt not hate thy brother in thine heart: thou shalt in any wise rebuke thy neighbour, and not suffer sin upon him.
Matthew 18:15Moreover if thy brother shall trespass against thee, go and tell him his fault between thee and him alone: if he shall hear thee, thou hast gained thy brother.
1 Timothy 5:20Them that sin rebuke before all, that others also may fear.