And eastward he inhabited That is, the tribe of Reuben. Unto the entering in of the wilderness, &c. From Jordan and the wilderness, beyond it unto Euphrates. Or, of the wilderness, which lies toward, or reacheth to the river Euphrates Namely, the great wilderness of Kedemoth, (Deuteronomy 2:26,) which was extended far and wide toward Euphrates: for that was the eastern border of Reuben's possession, and not Euphrates, to which their habitation never reached. Because their cattle were multiplied Which forced them to enlarge their habitation as far as they could toward Euphrates.
Related Commentaries of 1 Chronicles 5:9
1 Chronicles 5:9
9 And eastward he inhabited unto the entering in of the wilderness from the river Euphrates: because their cattle were multiplied in the land of Gilead.