1 Corinthians 5:10-11
Read this passage and open each verse for the full verse feed and commentary tools.
10Yet not altogether with the fornicators of this world, or with the covetous, or extortioners, or with idolaters; for then must ye needs go out of the world. 11But now I have written unto you not to keep company, if any man that is called a brother be a fornicator, or covetous, or an idolater, or a railer, or a drunkard, or an extortioner; with such an one no not to eat.
1 Corinthians 5:10-11 (KJV)