Verse 4. -
All the elders of Israel. Their presence seems to show that Absalom professed to act in an orderly and constitutional manner, and with the advice of those in authority. It was possibly this wish to keep up appearances which made him command Hushai to be summoned, as he was one whose advice would certainly have been asked had matters gone on in their ordinary channel. So again in vers. 14, 15, Absalom acts only with the popular consent. Very probably the royal power was gradually superseding that of the tribal authorities, and this may have made David unpopular with many of the great nobles. Absalom would thus gain many adherents by associating "elders" and "men of Israel" with him in his councils.
17:1-21 Here was a wonderful effect of Divine Providence blinding Absalom's mind and influencing his heart, that he could not rest in Ahithophel's counsel, and that he should desire Hushai's advice. But there is no contending with that God who can arm a man against himself, and destroy him by his own mistakes and passions. Ahithophel's former counsel was followed, for God intended to correct David; but his latter counsel was not followed, for God meant not to destroy him. He can overrule all counsels. Whatever wisdom or help any man employs or affords, the success is from God alone, who will not let his people perish.
And the saying pleased Absalom well, and all elders of Israel. That were of the privy council; for it was a well contrived scheme to surprise David his men by night, in the condition they were in; nothing like seizing an opportunity, and making quick dispatch in executing a villainous design; only it is strange that Absalom could so easily come into a scheme to take away the life of so indulgent a father, which is only to be accounted for by his ambition; but it is stranger still that the elders of Israel should be pleased with it, and agree to and determine upon the death of a prince, who had so many years ruled them with justice and equity, clemency and mercy; and fought their battles for them, and raised their nation to such a pitch of glory it never had before.