19 And again, whom should I serve? should I not serve in the presence of his son? as I have served in thy father's presence, so will I be in thy presence.
20 Then said Absalom to Ahithophel, Give counsel among you what we shall do.
21 And Ahithophel said unto Absalom, Go in unto thy father's concubines, which he hath left to keep the house; and all Israel shall hear that thou art abhorred of thy father: then shall the hands of all that are with thee be strong.
22 So they spread Absalom a tent upon the top of the house; and Absalom went in unto his father's concubines in the sight of all Israel.
23 And the counsel of Ahithophel, which he counselled 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.
2 Samuel 17
1 Moreover Ahithophel said unto Absalom, Let me now choose out twelve thousand men, and I will arise and pursue after David this night:
2 And I will come upon him while he is weary and weak handed, and will make him afraid: and all the people that are with him shall flee; and I will smite the king only:
3 And I will bring back all the people unto thee: the man whom thou seekest is as if all returned: so all the people shall be in peace.
4 And the saying pleased Absalom well, and all the elders of Israel.
5 Then said Absalom, Call now Hushai the Archite also, and let us hear likewise what he saith.
6 And when Hushai was come to Absalom, Absalom spake unto him, saying, Ahithophel hath spoken after this manner: shall we do after his saying? if not; speak thou.