David was told that Ahithophel was among the conspirators with Absalom. And David said, “O Lord, I pray you, turn the counsel of Ahithophel into foolishness.”
But if you return to the city and say to Absalom, ‘I will be your servant, O king; as I have been your father’s servant in time past, so now I will be your servant,’ then you will defeat for me the counsel of Ahithophel.
Ahithophel said to Absalom, “Go in to your father’s concubines, the ones he has left to look after the house, and all Israel will hear that you have made yourself odious to your father, and the hands of all who are with you will be strengthened.”