John Gills Exposition of the Bible Commentary - Genesis 36:37
And Samlah died ,.... As is supposed, about A. M. 2283. and Saul of Rehoboth by the river reigned in his stead ; Rehoboth was one of the cities built by Ashur, Genesis 10:11 ; and was situated near the river Euphrates; and so the Targum of Jonathan calls it Rehoboth which is by Euphrates; but Jerom F14 De loc. Heb. fol. 93. M. & 94. A. , from Eusebius, takes it to be another city by a river in Edom, and says, that there was in his days a garrison in the country of Gabalena... read more
Matthew Henry's Complete Commentary - Genesis 36:31-42
By degrees, it seems, the Edomites wormed out the Horites, obtained full possession of the country, and had a government of their own. 1. They were ruled by kings, who governed the whole country, and seem to have come to the throne by election, and not by lineal descent; so bishop Patrick observes. These kings reigned in Edom before there reigned any king over the children of Israel, that is, before Moses's time, for he was king in Jeshurun, Deut. 33:5. God had lately promised Jacob that kings... read more