And Achitophel said to Absalom: Go in to the concubines of thy father, whom he hath left to keep the house: that when all Israel shall hear that thou hast disgraced thy father, their hands may be strengthened with thee.

And Ahithophel said to Absalom, Go in to thy father's concubines, whom he has left to keep the house; and all Israel shall hear that thou art become odious with thy father; and the hands of all that are with thee shall be strong.

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.'

And Ahithophel said to Absalom, Go in to your father's women who are here looking after his house; then all Israel will have the news that you are hated by your father, and the hands of your supporters will be strong.

And Ahithophel said to Absalom: "Enter to the concubines of your father, whom he left behind in order to care for the house. Thus, when all of Israel will hear that you disgraced your father, their hands may be strengthened with you."

Taking possession of the harem was the most decided act of sovereignty (see 1-Kings 2:22). It was also the greatest offence and insult that could be offered. Such an act on Absalom's part made reconciliation impossible. A further motive has been found in this advice, namely, the desire on the part of Ahithophel to make David taste the bitterness of that cup which he had caused others (Uriah and all Bath-sheba's family) to drink, and receive the measure which he had meted withal.

Go in unto thy father's concubines - It may be remembered that David left ten of them behind to take care of the house, see 2-Samuel 15:16. Ahithophel advised this infernal measure, in order to prevent the possibility of a reconciliation between David and his son; thus was the prophecy to Nathan fulfilled, 2-Samuel 12:11. And this was probably transacted in the very same place where David's eye took the adulterous view of Bath-sheba; see 2-Samuel 11:2.
The wives of the conquered king were always the property of the conqueror; and in possessing these, he appeared to possess the right to the kingdom. Herodotus informs us that Smerdis, having seized on the Persian throne after the death of Cambyses, espoused all the wives of his predecessor, lib. iii., c. 68. But for a son to take his father's wives was the sum of abomination, and was death by the law of God, Leviticus 20:11. This was a sin rarely found, even among the Gentiles.
Every part of the conduct of Absalom shows him to have been a most profligate young man; he was proud, vindictive, adulterous, incestuous, a parricide, and, in fine, reprobate to every good word and work. We still however recollect that David had grievously sinned, and we should also recollect that he suffered grievously for it; and that his humiliation, repentance, and amendment, were most decisive and exemplary. Reader, God is as just as he is merciful.

And (k) 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.
(k) Suspecting the change of the kingdom, and so his own overthrow, he gives such counsel as might most hinder his father's reconciliation: and also declare to the people that Absalom was in highest authority.

And Ahithophel said unto Absalom,.... Either immediately of himself, without consulting with others; or after a consultation had been held between them, he as the president of it, and their mouth, gave the following advice; though the former seems most correct:
go in unto thy father's concubines, which he hath left, to keep the house; and lie with them; there were ten of them, 2-Samuel 15:16,
and all Israel shall hear that thou art abhorred of thy father; this fact will be so abominable to him, and he will so highly resent it, as never to forgive thee, and be reconciled unto thee:
then shall the hands of all that are with thee be strong; he intimates that they were now weak, and did not act with spirit; they were fearful that David and Absalom would be reconciled, and then they should be reckoned traitors, and fall a sacrifice to David's vengeance, for their treason against him: but by Absalom's taking such a step as this, which would make him for ever the object of his father's hatred, their hands and hearts would be strengthened, and their fears removed, and they would not have the least jealousy of a reconciliation between them, and of their being left to the resentment of David. Some think this was not his only reason for giving this counsel, but also to revenge David's abuse of Bathsheba, his son's daughter, as she is supposed to be; see Gill on 2-Samuel 15:12; however, it was so ordered in Providence, that this advice should be given and taken, to fulfil the prophecy of the Lord to Nathan, 2-Samuel 12:11.

Ahithophel said unto Absalom--This councillor saw that now the die was cast; half measures would be inexpedient. To cut off all possibility of reconciliation between the king and his rebellious son, he gave this atrocious advice regarding the treatment of the royal women who had been left in charge of the palace. Women, being held sacred, are generally left inviolate in the casualties of war. The history of the East affords only one parallel to this infamous outrage of Absalom.

Ahithophel gave the following counsel: "Go to thy father's concubines, whom he hath left behind to keep the house (i.e., lie with them: for אל בּוא, compare 2-Samuel 3:7, etc.); so will all Israel hear that thou hast made thyself stinking with thy father, and the hands of all those who are with thee will strengthen themselves." This advice was sagacious enough. Lying with the king's concubines was an appropriation of the royal harem, and, as such, a complete usurpation of the throne (see at 2-Samuel 3:7), which would render any reconciliation between Absalom and his father utterly impossible, and therefore would of necessity instigate the followers of Absalom to maintain his cause with all the greater firmness. This was what Ahithophel hoped to attain through his advice. For unless the breach was too great to be healed, with the affection of David towards his sons, which might in reality be called weakness, it was always a possible thing that he should forgive Absalom; and in that case Ahithophel would be the one to suffer. But under the superintendence of God this advice of Ahithophel was to effect the fulfilment, without any such intention on his part, of the threat held over David in 2-Samuel 12:8.

Go - This counsel he gave, partly to revenge the injury done to Bathsheba, the daughter of Eliam, 2-Samuel 11:3, who was the son of Ahithophel, 2-Samuel 23:34, and principally for his own, and the people's safety, that the breach between David and Absalom might be irreparable. For this would provoke David in the highest degree and cut of all hope of reconciliation, which otherwise might have been expected by some treaty between Absalom and his tender - hearted father. But in that case his followers, and especially Ahithophel, had been left to David's mercy, and therefore obliged to prosecute the war with all vigour, and to abandon all thoughts of peace: as knowing that his father, though be might dissemble, yet would never forgive so foul a crime. Be strong - They will fight with greater courage and resolution, when they are freed from the fear of thy reconciliation, which otherwise would make their hearts faint, and hands slack in thy cause. But by this we may see the character of Absalom's party, and how abominably wicked they were, whom such a scandalous action tied the faster to him. And we may farther learn, how corrupt the body of the people was, how ripe for that judgment which is now hastening to them.