Deuteronomy 2:26-30

26"So I sent messengers from the wilderness of Kedemoth to Sihon the king of Heshbon, with words of peace, saying,

27'Let me pass through your land. I will go only by the road; I will turn aside neither to the right nor to the left.

28You shall sell me food for money, that I may eat, and give me water for money, that I may drink. Only let me pass through on foot,

29as the sons of Esau who live in Seir and the Moabites who live in Ar did for me, until I go over the Jordan into the land that the Lord our God is giving to us.'

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.