But Absalom sent spies throughout all the tribes of Israel, saying, As soon as ye hear the sound of the trumpet, then ye shall say, Absalom reigneth in Hebron. Absalom sent spies - These persons were to go into every tribe; and the trumpet was to be blown as a signal for all to arise, and proclaim Absalom in every place. The trumpet was probably used as a kind of telegraph by the spies: trumpet exciting trumpet from place to place; so that, in a few minutes all Israel would hear the proclamation.
Related Commentaries of 2 Samuel 15:10
2 Samuel 15:10
10 But Absalom sent spies throughout all the tribes of Israel, saying, As soon as ye hear the sound of the trumpet, then ye shall say, Absalom reigneth in Hebron.