15 And Hushai said to Zadok and to Abiathar the priests, Thus and thus did Ahithophel counsel Absalom and the elders of Israel; and thus and thus have I counselled. 16 And now send quickly, and tell David saying, Lodge not this night in the plains of the wilderness, but speedily pass over; lest the king be swallowed up, and all the people that are with him. 17 And Jonathan and Ahimaaz stayed by En-rogel; and the maid went and told them; and they went and told king David, for they might not be seen to come into the city. 18 But a lad saw them, and told Absalom. Then they went both of them away quickly, and came to the house of a man at Bahurim, who had a well in his court; and they went down there. 19 And the woman took and spread the covering over the well's mouth, and spread ground corn on it; and the thing was not known. 20 And Absalom's servants came to the woman to the house, and said, Where are Ahimaaz and Jonathan? And the woman said to them, They have gone over the brook of water. And they sought and could not find [them], and returned to Jerusalem. 21 And it came to pass after they had departed, that they came up out of the well, and went and told king David; and they said to David, Arise and pass quickly over the water; for thus has Ahithophel counselled against you.

Matthew Henry's Commentary on 2 Samuel 17:15-21

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.