20 And when Absalom's servants came to the woman at the house, they said, "Where are Ahimaaz and Jonathan?" So the woman said to them, "They have gone over the water brook." And when they had searched and could not find them, they returned to Jerusalem.
Matthew Henry's Commentary on 2 Samuel 17:20
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.