Deuteronomy 2:32

28 You can sell us food to eat and water to drink in exchange for silver. Only let us pass through on foot,

29 just as the descendants of Esau who live in Seir and the Moabites who live in Ar did for us, until we cross the Jordan into the land that the LORD our God is giving us.”

30 But 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.

31 Then 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.”

32 So Sihon and his whole army came out for battle against us at Jahaz.

33 And the LORD our God delivered him over to us, and we defeated him and his sons and his whole army.

34 At that time we captured all his cities and devoted to destruction the people of every city, including women and children. We left no survivors.

35 We carried off for ourselves only the livestock and the plunder from the cities we captured.

36 From 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.

Read all of Deuteronomy 2