Then the man’s wife took a covering, spread it over the mouth of the well, and scattered grain over it so nobody would know a thing.
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.
Commenting on 2 Samuel 17:15-21
And when Absalom's servants came to the woman to the house,.... Who were sent after then, had intelligence which way they took, and into what house they turned: they said, where are Ahimaaz and Jonathan? calling them by their names, being persons well known, and as to them, so to the woman of the house, as they supposed: and the woman said unto them, they...
And the woman took and spread a covering over the well's mouth, and spread ground corn thereon; and the thing was not known. (h) Thus God sends help to his, in their greatest dangers.