2 Samuel 15:11

9The king said to him, “Go in peace.” So he arose and went to Hebron.

10But Absalom sent spies throughout all the tribes of Israel, saying, “As soon as you hear the sound of the trumpet, then you shall say, ‘Absalom is king in Hebron!’”

11Two hundred men went with Absalom out of Jerusalem, who were invited, and went in their simplicity; and they didn’t know anything.

12Absalom sent for Ahithophel the Gilonite, David’s counselor, from his city, even from Giloh, while he was offering the sacrifices. The conspiracy was strong, for the people increased continually with Absalom.

13A messenger came to David, saying, “The hearts of the men of Israel are after Absalom.”