Deuteronomy 3:6; Deuteronomy 3:16

6 We completely destroyed them, as we had done with Sihon king of Heshbon, destroying every city—men, women and children.

16 But to the Reubenites and the Gadites I gave the territory extending from Gilead down to the Arnon Gorge (the middle of the gorge being the border) and out to the Jabbok River, which is the border of the Ammonites.