Deuteronomy 2:26-29

Then from the waste land of Kedemoth I sent representatives to Sihon, king of Heshbon, with words of peace, saying, Let me go through your land: I will keep to the highway, not turning to the right or to the left; Let me have food, at a price, for my needs, and water for drinking: only let me go through on foot; As the children of Esau did for me in Seir and the Moabites in Ar; till I have gone over Jordan into the land which the Lord our God is giving us.