Deuteronomy 2:2-5

And the Lord said to me, You have been journeying round this mountain long enough: now go to the north; And give the people orders, saying, You are about to go through the land of your brothers, the children of Esau, who are living in Seir; and they will have fear of you; so take care what you do: Make no attack on them, for I will not give you any of their land, not even space enough for a man's foot: because I have given Mount Seir to Esau for his heritage.