2 Samuel 16:20-17:4

20Then Absalom said to Ahithophel, “Give your counsel. What shall we do?” 21Ahithophel said to Absalom, “Go in to your father’s concubines, whom he has left to keep the house, and all Israel will hear that you have made yourself a stench to your father, and the hands of all who are with you will be strengthened.” 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. 23Now in those days the counsel that Ahithophel gave was as if one consulted the word of God; so was all the counsel of Ahithophel esteemed, both by David and by Absalom. 1Moreover, Ahithophel said to Absalom, “Let me choose twelve thousand men, and I will arise and pursue David tonight. 2I will come upon him while he is weary and discouraged and throw him into a panic, and all the people who are with him will flee. I will strike down only the king, 3and I will bring all the people back to you as a bride comes home to her husband. You seek the life of only one man, and all the people will be at peace.” 4And the advice seemed right in the eyes of Absalom and all the elders of Israel.