1 Corinthians 5:9-13 - Church Discipline
9 I did write to you in the epistle, not to keep company with whoremongers -- 10 and not certainly with the whoremongers of this world, or with the covetous, or extortioners, or idolaters, seeing ye ought then to go forth out of the world -- 11 and now, I did write to you not to keep company with him, if any one, being named a brother, may be a whoremonger, or covetous, or an idolater, or a railer, or a drunkard, or an extortioner -- with such a one not even to eat together; 12 for what have I also those without to judge? those within do ye not judge? 13 and those without God doth judge; and put ye away the evil from among yourselves.