Canaan. The banning of the Canaanites of Arad and its cities necessarily presupposed the immediate conquest of the whole territory, and the laying of all its cities in ashes. And so, again, the introduction of a king of Hormah, i.e., Zephath, among the kings defeated by Joshua (Jos 12:14), is no proof that Zephath was conquered and called Hormah in the time of Moses. Zephath may be called Hormah proleptically both there and in Jos 19:4, as being the southernmost border town of the kingdom of Arad, in consequence of the ban suspended by Moses over the territory of the king of Arad, and may not have received this name till after its conquest by the Judaeans and Simeonites. At the same time, it is quite conceivable that Zephath may have been captured in the time of Joshua, along with the other towns of the south, and called Hormah at that time, but that the Israelites could not hold it then; and therefore, after the departure of the Israelitish army, the old name was restored by the Canaanites, or rather only retained, until the city was retaken and permanently held by the Israelites after Joshua's death (Jdg 1:16-17), and received the new name once for all. The allusion to Hormah here, and in Num 14:45, does not warrant the opinion in any case, that it was subsequently to the death of Moses and the conquest of Canaan under Joshua that the war with the Canaanites of Arad and their overthrow occurred.
verses 4-9
March of Israel through the Arabah. Plague of Serpents, and Brazen Serpent. - Num 21:4. As the Edomites refused a passage through their land when the Israelites left Mount Hor, they were obliged to take the way to the Red Sea, in order to go round the land of Edom, that is to say, to go down the Arabah to the head of the Elanitic Gulf.
verses 5-6
As they went along this road the people became impatient (“the soul of the people was much discouraged,” see Exo 6:9), and they began once more to murmur against God and Moses, because they had neither bread nor water (cf. Num 20:4.), and were tired of the loose, i.e., poor, food of manna (קלקל from קלל). The low-lying plain of the Arabah, which runs between steep mountain walls from the Dead Sea to the Red Sea, would be most likely to furnish the Israelites with very little food, except the manna which God gave them; for although it is not altogether destitute of vegetation, especially at the mouths of the wadys and winter torrents from
