1 Corinthians 5:11-13

Mace(i) 11 but my meaning was, not to keep company with any christian known to be vicious, or covetous, or an idolater, or a railer, or a drunkard, or rapacious, no not even to eat with such a one. 12 for what have I to do to judge those who are without the church; but are not you to judge those that are within? 13 those that are without, God will judge. therefore expel the libertine from your community.