Deuteronomy 3:6; Deuteronomy 3:16

6 And we devoted them to destruction, as we did to Sihon the king of Heshbon, devoting to destruction every city, men, women, and children.

16 and to the Reubenites and the Gadites I gave the territory from Gilead as far as the Valley of the Arnon, with the middle of the valley as a border, as far over as the river Jabbok, the border of the Ammonites;