Acts 23:13
They were about forty which had made this conspiration.
2 Samuel 15:12
And Absalom sent also for Ahithophel the Gilonite, David's counselor, and fetched him out of his city Giloh, when he sacrificed sacrifices. And there was wrought strong treason. And the people drew to Absalom in great multitude.
2 Samuel 15:31
And one told David, saying, "Ahithophel is one of them that have conspired with Absalom." Then said David, "O LORD, turn the counsel of Ahithophel unto foolishness."
John 16:2
They shall excommunicate you: yea the time shall come, that whosoever killeth you, will think that he doth God true service.