Proverbs 27:5
Open rebuke is better than secret love.
Proverbs 28:23
He who rebukes a man shall afterwards find more favor than he who flatters with the tongue.
Galatians 2:14
But when I saw that they did not walk uprightly with the truth of the gospel, I said to Peter before all, If you, being a Jew, live as a Gentile, and not as the Jews, why do you compel the nations to judaize?
Leviticus 19:17
You shall not hate your brother in your heart. You shall always rebuke your neighbor, and not allow sin on him.
Matthew 18:15
But if your brother shall trespass against you, go and tell him his fault between you and him alone. If he hears you, you have gained your brother.
1 Timothy 5:20
Those who sin, rebuke before all, so that the rest also may fear.