John Gills Exposition of the Bible Commentary - 2 Samuel 15:10
But Absalom sent spies throughout all the land of Israel ,.... To sound the disposition of the people towards him, to insinuate things into their minds in favour of him, and to improve every opportunity of recommending him to their esteem and affections: saying, as soon as ye hear the sound of the trumpet ; in any place; and which it is probable he employed men to sound in many places: then ye shall say, Absalom reigneth in Hebron : which is the cause of the trumpet's sounding; and... read more
Matthew Henry's Complete Commentary - 2 Samuel 15:7-12
We have here the breaking out of Absalom's rebellion, which he had long been contriving. It is said to be after forty years, 2 Sam. 15:7. But whence it is to be dated we are not told; not from David's beginning his reign, for then it would fall in the last year of his life, which is not probable; but either from his first anointing by Samuel seven years before, or rather (I think) from the people's desiring a king, and the first change of the government into a monarchy, which might be about... read more