Albert Barnes Commentary Psalms 83:6

"The tents of Edom and the Ishmaelites; Moab, and the Hagarenes;" — Psalms 83:6 (ASV)

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 over 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.