The tabernacles of Edom - The tents of Edom; meaning here, the dwellers in those tents, that is, the Edomites. The word tabernacles or tents does not necessarily imply that the nation then led a wandering life, for the word came to signify in process of time a dwelling-place, or a habitation. The Edomites were not, in fact, a roving and wandering people, but a people of fixed boundaries. In early periods, however, like most ancient people, they doubtless dwelt in tents. Edom, or Idumea, was south of Palestine. See the notes at Isaiah 11:14.
And the Ishmaelites - The descendants of Ishmael. They dwelt in Arabia Deserta.
Of Moab - On the situation of Moab, see the notes at Isaiah 15:1-9. It was on the southeast of Palestine.
And the Hagarenes - The Hagarenes were properly Arabs, so called from Hagar, the handmaid of Abraham, the mother of Ishmael. Genesis 16:1; Genesis 25:12. As connected with the Ishmaelites they would naturally join in this alliance.

The tabernacles of Edom - The tents of these different people are seen in the grand encampment. Tents are probably mentioned because it seas the custom of some of these people, particularly the lshmaelites, to live a migratory or wandering life; having no fixed habitation, but always abiding in tents. Their posterity remain to the present day, and act and live in the same manner.
Hagarenes - These people dwelt on the east of Gilead; and were nearly destroyed in the days of Saul, being totally expelled from their country, 1-Chronicles 5:10, but afterwards recovered some strength and consequence; but where they dwelt after their expulsion by the Israelites is not known.

The tabernacles of Edom, &c. Or the Idumeans, as the Targum; the posterity of Esau, who, with the rest that joined with them, hereafter mentioned, and made the confederate army, brought their tents with them, pitched them, and encamped in them against Israel:
and the Ishmaelites; or Arabians, as the Targum, who descended from Ishmael, the son of Abraham:
of Moab, and the Hagarenes; the Moabites, who sprung from Lot by one of his daughters, in an incestuous way; and the Hagarenes are the same with the Hagarites, 1-Chronicles 5:10 who dwelt to the east of the land of Israel, so called from Hagar, the handmaid of Abraham, but not by him, but by another husband, after sent away from him, as Aben Ezra and Kimchi think, or by him, supposing Hagar to be the same with Keturah, as some do: the Targum calls them Hungarians; the Syriac version renders it Gadareans, or Gadarenes; of which see Mark 5:1.

tabernacles--for people (Psalm 78:67).
they--all these united with the children of Lot, or Ammonites and Moabites (compare 2-Chronicles 20:1).

The tabernacles - The people dwelling in them. Ishmaelites - Some of the posterity of Ishmael, called by their father's name, as others of them are supposed to be called Hagarens from their grandmother Hagar.