1 Corinthians 5:9-13 - Church Discipline
9 When I formerly writ to you, not to keep company with the vicious: 10 I did not mean the vicious Gentiles, the misers, the raparees, or with idolaters; for then you must have gone out of the world. 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.