And the LORD spoke to Moses in the plains of Moab by the Jordan at Jericho, saying,
50. And the Lord spake unto Moses. The end and design of God in willing that these nations should be expelled, I have elsewhere explained, See ante, vol. 2: p. 397, etc. viz, lest they should adulterate the pure worship of God by their admixtures, should corrupt the people by their bad examples, and thus be pollutions to the Holy Land.
FROM SINAI TO KADESH AND PLAINS OF MOAB. (Num. 33:16-56) Kibroth-Hattaavah ("the graves of lust," see on Num 11:34) --The route, on breaking up the encampment at Sinai, led down Wady Sheikh; then crossing Jebel-et-Tih, which intersected the peninsula, they descended into Wady Zalaka, pitching successively at two brief, though memorable, stations (Deu 9:22); then they encamped at Hazeroth ("unwalled villages"), supposed to be at Ain-Hadera (see on Num 11:35).
Commenting on Numbers 33:16-56
ye shall drive out all the inhabitants of the land from before you--not, however, by expulsion, but extermination (Deu 7:1). and destroy all their pictures--obelisks for idolatrous worship (see on Lev 26:1). and destroy all their molten images, and quite pluck down all their high places--by metonymy for all their groves and altars, and materials of worship on the tops of hills.