So we went on, away from our brothers, the people of Esau, who live in Seir, away from the Arabah road from Elath and Ezion-geber. “And we turned and went in the direction of the wilderness of Moab.
It is observable here that Moses, speaking of the Edomites (Deu 2:8), calls them, "our brethren, the children of Esau." Though they had been unkind to Israel, in refusing them a peaceable passage through their country, yet he calls them brethren.
Commenting on Deuteronomy 2:8-23
And when we passed by from our brethren the children of Esau, which dwelt in Self,.... Along their coasts, by the borders of their country: through the way of the plain; the wilderness of Zin, where Kadesh was: from Elath and Eziongeber; the two ports on the shore of the Red sea in the land of Edom; it was from the latter they came to Kadesh; see Num 33:35.
we passed . . . through the way of the plain--the Arabah or great valley, from Elath ("trees") (the Ailah of the Greeks and Romans). The site of it is marked by extensive mounds of rubbish. Ezion-geber--now Akaba, both were within the territory of Edom; and after making a circuit of its southeastern boundary, the Israelites reached the border of Moab on the southeast of the Salt Sea.