21 Then after the servants had gone away, they came up out of the water-hole and went to give King David the news; and they said, Get up and go quickly over the water, for such and such are Ahithophel's designs against you.

Matthew Henry's Commentary on 2 Samuel 17:21

Commentary on 2 Samuel 17:1-21

(Read 2 Samuel 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.