2 Samuel 15:10-13

10Then Absalom sent spies through all the tribes of Israel who said, “When you hear the sound of the horn, you may assume that Absalom rules in Hebron.”

11Now two hundred men had gone with Absalom from Jerusalem. Since they were invited, they went naively and were unaware of what Absalom was planning.

12While 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.

13Then a messenger came to David and reported, “The men of Israel are loyal to Absalom!”