Deuteronomy 2:30-37

30But Sihon king of Heshbon would not let us pass through, for the LORD your God had made his spirit stubborn and his heart obstinate, that He might deliver him into your hand, as is the case this day.

31Then the LORD said to me, “See, I have begun to deliver Sihon and his land over to you. Now begin to conquer and possess his land.”

32So Sihon and his whole army came out for battle against us at Jahaz. 33And the LORD our God delivered him over to us, and we defeated him and his sons and his whole army.

34At that time we captured all his cities and devoted to destruction1 the people of every city, including women and children. We left no survivors. 35We carried off for ourselves only the livestock and the plunder from the cities we captured.

36From Aroer on the rim of the Arnon Valley, along with the city in the valley, even as far as Gilead, not one city had walls too high for us. The LORD our God gave us all of them. 37But you did not go near the land of the Ammonites, or the land along the banks of the Jabbok River, or the cities of the hill country, or any place that the LORD our God had forbidden.