The tribes of Reuben and Gad owned vast numbers of livestock. So when they saw that the lands of Jazer and Gilead were ideally suited for their flocks and herds,
“The Lord our God also helped us conquer Aroer on the edge of the Arnon Gorge, and the town in the gorge, and the whole area as far as Gilead. No town had walls too strong for us.
Their territory extended from Aroer on the edge of the Arnon Gorge (including the town in the middle of the gorge) to the plain beyond Medeba, as far as Dibon.