Proverbs 9:6 Forsake the foolish, and live; and go in the way of understanding.

Proverbs 13:20 He that walketh with wise men shall be wise: but a companion of fools shall be destroyed.

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.

Ephesians 5:7 Be not ye therefore partakers with them.

Ephesians 5:11 And have no fellowship with the unfruitful works of darkness, but rather reprove them.

Jeremiah 28:11 And Hananiah spake in the presence of all the people, saying, Thus saith the LORD; Even so will I break the yoke of Nebuchadnezzar king of Babylon from the neck of all nations within the space of two full years. And the prophet Jeremiah went his way.