Deuteronomy 2:30-37

30But Sihon the king of Heshbon would not let us pass by him, for the Lord your God hardened his spirit and made his heart obstinate, that he might give him into your hand, as he is this day.

31And the Lord said to me, 'Behold, I have begun to give Sihon and his land over to you. Begin to take possession, that you may occupy his land.'

32Then Sihon came out against us, he and all his people, to battle at Jahaz.

33And the Lord our God gave him over to us, and we defeated him and his sons and all his people.

34And we captured all his cities at that time and devoted to destruction every city, men, women, and children. We left no survivors.

35Only the livestock we took as spoil for ourselves, with the plunder of the cities that we captured.

36From Aroer, which is on the edge of the Valley of the Arnon, and from the city that is in the valley, as far as Gilead, there was not a city too high for us. The Lord our God gave all into our hands.

37Only to the land of the sons of Ammon you did not draw near, that is, to all the banks of the river Jabbok and the cities of the hill country, whatever the Lord our God had forbidden us.