New American Standard Bible (NASB)
2 Samuel 16
20 Then Absalom said to Ahithophel, "Give your advice. What shall we do?"
21 Ahithophel said to Absalom, "Go in to your father’s concubines, whom he has left to keep the house; then all Israel will hear that you have made yourself odious to your father. The hands of all who are with you will also be strengthened."
22 So they pitched a tent for Absalom on the roof, and Absalom went in to his father’s concubines in the sight of all Israel.
23 The advice of Ahithophel, which he gave in those days, was as if one inquired of the word of God; so was all the advice of Ahithophel regarded by both David and Absalom.
2 Samuel 17
1 Furthermore, Ahithophel said to Absalom, "Please let me choose 12,000 men that I may arise and pursue David tonight.
2 I will come upon him while he is weary and exhausted and terrify him, so that all the people who are with him will flee. Then I will strike down the king alone,
3 and I will bring back all the people to you. The return of everyone depends on the man you seek; then all the people will be at peace."
4 So the plan pleased Absalom and all the elders of Israel.
5 Then Absalom said, "Now call Hushai the Archite also, and let us hear what he has to say."
6 When Hushai had come to Absalom, Absalom said to him, "Ahithophel has spoken thus. Shall we carry out his plan? If not, you speak."
7 So Hushai said to Absalom, "This time the advice that Ahithophel has given is not good."