1 Corinthians 5:9-13 - Church Discipline
9 I wrote to you in the letter not to associate intimately with fornicators; 10 yet not altogether with the fornicators of this world, or with the covetous, or extortioners, or with idolaters; for then you must go out of the world. 11 But now I have written to you not to associate intimately, if any man called a brother and is either a fornicator, or covetous, or an idolater, or a reviler, or a drunkard, or an extortioner; with such a one not to eat. 12 For what is it to me to also judge those who are outside? Do you not judge those who are inside? 13 But God judges those who are outside. Therefore put out from you the evil one.