Ye shall drive out; not by banishing, but by destroying them, as it is explained, Deuteronomy 7:1,2, and elsewhere. Their pictures seem to have been stones curiously engraven, and set up for worship. See Deuteronomy 16:22. Molten images. See Exodus 23:24,32 Deu 7:5. High places, i.e. by a metonymy, the chapels, altars, groves, or other means of worship there set up, for the hills themselves could not be destroyed by them. See Poole on "Deuteronomy 12:2".
Related Commentaries of Numbers 33:52
Numbers 33:52
52 Then ye shall drive out all the inhabitants of the land from before you, and destroy all their pictures, and destroy all their molten images, and quite pluck down all their high places: