2 Samuel 16:21-23

Young's Literal Translation

²¹ And Ahithophel saith unto Absalom, `Go in unto the concubines of thy father, whom he left to keep the house, and all Israel hath heard that thou hast been abhorred by thy father, and the hands of all who [are] with thee have been strong.'

²² And they spread out for Absalom the tent on the roof, and Absalom goeth in unto the concubines of his father before the eyes of all Israel.

²³ And the counsel of Ahithophel which he counselled in those days [is] as [when] one inquireth at the word of God; so [is] all the counsel of Ahithophel both to David and to Absalom.