1 Corinthians 5:9-11 I wrote to you in an letter not to company with fornicators:

AKJV⁽ⁱ⁾ ⁹ I wrote to you in an letter not to company with fornicators: ¹⁰ Yet not altogether with the fornicators of this world, or with the covetous, or extortionists, or with idolaters; for then must you needs go out of the world. ¹¹ But now I have written to you not to keep company, if any man that is called a brother be a fornicator, or covetous, or an idolater, or a reviler, or a drunkard, or an extortionist; with such an one no not to eat.