2 Samuel 15:11-12
15:11 Now two hundred men had gone with Absalom from Jerusalem. Since they were invited, they went naively and were unaware of what Absalom was planning.
15:12 While he was offering sacrifices, Absalom sent for Ahithophel the Gilonite, David’s adviser, to come from his city, Giloh. The conspiracy was gaining momentum, and the people were starting to side with Absalom.