He who rebukes a man shall afterwards find more favor than he who flatters with the tongue.

You shall not hate your brother in your heart. You shall reprove to correct your neighbor, and not bear sin because of him.

Moreover if your brother sins against you, go and reprove him between you and him alone. If he hears you, you have gained your brother.

But when I saw that they were not straightforward about the truth of the gospel, I said to Peter before them all, If you, being a Jew, live in the manner of Gentiles and not as the Jews, why do you compel Gentiles to Judaize?

Those who are sinning rebuke in the presence of all, that the rest also may fear.