1 Corinthians 5:9. I wrote unto you in an epistle not to company with fornicators:
1 Corinthians 5:11. But 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.
2 Thessalonians 3:14. And if any man obey not our word by this epistle, note that man, and have no company with him, that he may be ashamed.
Hosea 7:8. Ephraim, he hath mixed himself among the people; Ephraim is a cake not turned.