10 But Ab'salom sent secret messengers throughout all the tribes of Israel, saying, "As soon as you hear the sound of the trumpet, then say, 'Ab'salom is king at Hebron!'" 11 With Ab'salom went two hundred men from Jerusalem who were invited guests, and they went in their simplicity, and knew nothing. 12 And while Ab'salom was offering the sacrifices, he sent for Ahith'ophel the Gi'lonite, David's counselor, from his city Giloh. And the conspiracy grew strong, and the people with Ab'salom kept increasing.
Matthew Henry's Commentary on 2 Samuel 15:10-12
Commentary on 2 Samuel 15:7-12
(Read 2 Samuel 15:7-12)
See how willing tender parents are to believe the best concerning their children. But how easy and how wicked is it, for children to take advantage of good parents, and to deceive them with the show of religion! The principal men of Jerusalem joined Absalom's feast upon his sacrifice. Pious persons are glad to see others appear religious, and this gives occasion for deceptions. The policy of wicked men, and the subtlety of Satan, are exerted to draw good persons to countenance base designs.