Ahithophel said to Absalom, “Go in to your father’s concubines, whom he left to take care of the house. Then all Israel will hear that you have made yourself hated by your father, and the hands of everyone with you will grow strong.”
In context
19And besides, whom should I serve? Should I not serve in the presence of his son? As I served in your father’s presence, so I will be in yours.” 20Absalom said to Ahithophel, “Give your counsel — what should we do?” 21Ahithophel said to Absalom, “Go in to your father’s concubines, whom he left to take care of the house. Then all Israel will hear that you have made yourself hated by your father, and the hands of everyone with you will grow strong.” 22So they pitched a tent for Absalom on the roof, and Absalom went in to his father’s concubines in the sight of all Israel. 23In those days, the counsel Ahithophel gave was regarded as if a man had gone and inquired of God himself — that was how both David and Absalom regarded all of Ahithophel’s counsel.