Commentaries
23:15-24 Josiah's zeal extended to the cities of Israel within his reach. He carefully preserved the sepulchre of that man of God, who came from Judah to foretell the throwing down of Jeroboam's altar. When they had cleared the country of the old leaven of idolatry, then they applied themselves to the keeping of the feast. There was not holden such a passover in any of the foregoing reigns. The revival of a long-neglected ordinance, filled them with holy joy; and God recompensed their zeal in destroying idolatry with uncommon tokens of his presence and favour. We have reason to think that during the remainder of Josiah's reign, religion flourished.
15-20. Moreover the altar that was at Beth-el, &c.—Not satisfied with the removal of every vestige of idolatry from his own dominion, this zealous iconoclast made a tour of inspection through the cities of Samaria and all the territory formerly occupied by the ten tribes, destroying the altars and temples of the high places, consigning the Asherim to the flames, putting to death the priests of the high places, and showing his horror at idolatry by ransacking the sepulchers of idolatrous priests, and strewing the burnt ashes of their bones upon the altars before he demolished them.