2 Samuel 15:13

And Absalom sent for Ahithophel the Gilonite, David's counseller, from his city, even from Giloh, while he offered sacrifices. And the conspiracy was strong; for the people increased continually with Absalom.

And David said unto all his servants that were with him at Jerusalem, Arise, and let us flee; for we shall not else escape from Absalom: make speed to depart, lest he overtake us suddenly, and bring evil upon us, and smite the city with the edge of the sword.