Matthew Henry on 2 Samuel 17:15-21
We must now leave David's enemies pleasing themselves with the thoughts of a sure victory by following Hushai's counsel, and sending a summons, no doubt, to all the tribes of Israel, to come to the general rendezvous at a place appointed, pursuant to that counsel; and we next find David's friends consulting how to get him notice of all this, that he might steer his course accordingly. Hushai tells the priests what had passed in council, Sa2 17:15. But, it should seem, he was not sure but that yet Ahithophel's counsel might be followed, and was therefore jealous lest, if he made not the best of his way, the king would be swallowed up, and all the people that were with him, Sa2 17:16. Perhaps,…
Read the whole note in the consoleJamieson-Fausset-Brown on 2 Samuel 17:16
SECRET INTELLIGENCE SENT TO DAVID. (Sa2 17:15-22)
send quickly, and tell David--Apparently doubting that his advice would be followed, Hushai ordered secret intelligence to be conveyed to David of all that transpired, with an urgent recommendation to cross the Jordan without a moment's delay, lest Ahithophel's address and influence might produce a change on the prince's mind, and an immediate pursuit be determined on.
Adam Clarke on 2 Samuel 17:13
Shall all Israel bring ropes to that city - The original word חבלים chabalim, which signifies ropes, and from which we have our word cable, may have some peculiarity of meaning here; for it is not likely that any city could be pulled down with ropes. The Chaldee, which should be best judge in this case, translates the original word by משרין mashreyan, towers: this gives an easy sense.
John Gill on 2 Samuel 17:16
Now therefore send quickly and tell David,.... What has been advised to on both sides:
saying, lodge not this night in the plains of the wilderness; which reached to Jericho; this advice he gave, because he knew not whether his counsel would be abode by, though preferred; Absalom and the elders of Israel might change their minds, and Ahithophel might, by the strength of his oratory, prevail upon them after all to follow his advice; and therefore, to guard against the worst, he judged it most prudential in David to make all the haste he could from that place where he was, and not continue a night longer in it; for, if Ahithophel's counsel should take place, he would be in pursuit of him that…