And the border of the children of Reuben was Jordan, and the border thereof,.... As their border eastward was Aroer on the river Arnon, so their border westward was the river Jordan: this was the inheritance of the children of Reuben, after their families, the cities and the villages thereof; which Moses gave them on the other side Jordan; and next follow an account of the inheritance of the tribe of Gad in those parts.