This is the account of Esau (that is, Edom). ... This is the account of Esau, the father of the Edomites, in the area of Mount Seir. ... Magdiel, and Iram. These were the chiefs of Edom, according to their settlements in the land they possessed. Esau was the father of the Edomites.
From Kadesh, Moses sent messengers to tell the king of Edom, “This is what your brother Israel says: You know all the hardship that has befallen us, how our fathers went down to Egypt, where we lived many years. The Egyptians mistreated us and our fathers, and when we cried out to the LORD, He heard our voice, sent an angel, and brought us out of Egypt. Now look, we are in Kadesh, a city on the edge of your territory. Please let us pass through your land. We will not cut through any field or vineyard, or drink water from any well. We will stay on the King’s Highway; we will not turn to the right or to the left until we have passed through your territory.” But Edom answered, “You may not travel through our land, or we will come out and confront you with the sword.” “We will stay on the main road,” the Israelites replied, “and if we or our herds drink your water, we will pay for it. There will be no problem; only let us pass through on foot.” But Edom insisted, “You may not pass through.” And they came out to confront the Israelites with a large army and a strong hand. So Edom refused to allow Israel to pass through their territory, and Israel turned away from them.