Open rebuke is better than hidden love.
He that rebukes a man shall find more favor afterwards than he that flatters with the tongue.
But when I saw that they walked not uprightly according to the truth of the gospel, I said unto Peter before them all, If you, being a Jew, live after the manner of Gentiles, and not as do the Jews, why compel you the Gentiles to live as do the Jews?
You shall not hate your brother in your heart: you shall surely rebuke your neighbor, and not bear sin because of him.
Moreover if your brother shall trespass against you, go and tell him his fault between you and him alone: if he shall hear you, you have gained your brother.