2 Samuel 15:10-13 - WEB
10
But 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.
11
With Absalom went two hundred men out of Jerusalem, who were invited, and went in their simplicity; and they didn`t know anything.
12
Absalom 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.
13
There came a messenger to David, saying, The hearts of the men of Israel are after Absalom.
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