1 Corinthians 5:9-13 - Church Discipline
9 I have written unto you in an epistle that you should not associate with fornicators. 10 Yet not altogether with the fornicators of this world, or the covetous, or extortioners, or idolaters: for then must ye indeed go out of the world. 11 But now I have written unto you not to associate with him, if any man, professing to be a brother, be a fornicator, or covetous, or an idolater, or a railer, or a drunkard, or an extortioner, with such a one not even to eat. 12 For what call have I to judge those who are without? Do not ye judge those who are within [the church]? 13 But those who are without God judgeth. Put then away that wicked man from among yourselves.