The Jewish Encyclopedia,1925 edition, vol. 5, p. 41, says:"Edom is in ModernJewery." The Esau-Edomite nation ... "Thus dwelt Esau in Mount Seir; Esau is Edom."
Often used as evidence for predestination as Esau did nothing to incur God's wrath. His flaw was that he was not foresighted enough to lead the nation.