Rebuke

Leviticus 19:17 - Thou shalt not hate thy brother in thine heart: thou shalt in any wise rebuke thy neighbor, and not suffer sin upon him.
Proverbs 17:10 - A reproof entereth more into a wise man than a hundred stripes into a fool.
1 Corinthians 5:11 - But now I have written unto you not to keep company, if any man that is called a brother be a fornicator, or covetous, or an idolater, or a railer, or a drunkard, or an extortioner; with such a one no not to eat.

1 Corinthians 5:12 - For what have I to do to judge them also that are without? do not ye judge them that are within?

1 Corinthians 5:13 - But them that are without God judgeth. Therefore put away from among yourselves that wicked person.
2 Timothy 3:16 - All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness: