Deuteronomy 2:22

2:22 This is exactly what he did for the descendants of Esau who lived in Seir when he destroyed the Horites before them so that they could dispossess them and settle in their area to this very day.

Deuteronomy 2:32-37

2:32 When Sihon and all his troops emerged to encounter us in battle at Jahaz, 2:33 the Lord our God delivered him over to us and we struck him down, along with his sons and everyone else. 2:34 At that time we seized all his cities and put every one of them under divine judgment, including even the women and children; we left no survivors. 2:35 We kept only the livestock and plunder from the cities for ourselves. 2:36 From Aroer, which is at the edge of Wadi Arnon (it is the city in the wadi), all the way to Gilead there was not a town able to resist us – the Lord our God gave them all to us. 2:37 However, you did not approach the land of the Ammonites, the Wadi Jabbok, the cities of the hill country, or any place else forbidden by the Lord our God.