2 Samuel 16:21-23

AKJV(i) 21 And Ahithophel said to Absalom, Go in to your father's concubines, which he has left to keep the house; and all Israel shall hear that you are abhorred of your father: then shall the hands of all that are with you be strong. 22 So they spread Absalom a tent on the top of the house; and Absalom went in to his father's concubines in the sight of all Israel. 23 And the counsel of Ahithophel, which he counceled in those days, was as if a man had inquired at the oracle of God: so was all the counsel of Ahithophel both with David and with Absalom.