1. The idols and all their appurtenances should be destroyed. The high places, which were on the tops of mountains (v. 3), shall be levelled and made desolate (v. 6); they shall not be beautified, shall not be frequented as they had been. The altars, on which they offered sacrifice and burnt incense to strange gods, shall be broken to pieces and laid waste; the images and idols shall be defaced, shall be broken and cease, and be cut down, and all the fine costly works about them shall be abolished, v. 4, 6. Observe here, (1.) That war makes woeful desolations, which those persons, places, and things that were esteemed most sacred cannot escape; for the sword devours one as well as another. (2.) That God sometimes ruins idolatries even by the hands of idolaters, for such the Chaldeans themselves were; but, as if the deity were a local thing, the greatest admirers of the gods of their own country were the greatest despisers of the gods of other countries. (3.) It is just with God to make that a desolation which we make an idol of; for he is a jealous God and will not bear a rival. (4.) If men do not, as they ought, destroy idolatry, God will, first or last, find out a way to do it. When Josiah had destroyed the high places, altars, and images, with the sword of justice, they set them up again; but God will now destroy them with the sword of war, and let us see who dares re-establish them.