1 Corinthians 5:9-11

9I have written to you in the epistle not to mix with fornicators;

10not altogether with the fornicators of this world, or with the avaricious and rapacious, or idolaters, since [then] ye should go out of the world.

11But now I have written to you, if any one called brother be fornicator, or avaricious, or idolater, or abusive, or a drunkard, or rapacious, not to mix with [him]; with such a one not even to eat.