EDOM, or IDUMÆA, in Ancient Geography, a district of Arabia Petrea; a great part also of the south of Judæa was called Idumæa, because occupied by the Idumæans, upon the Jewish captivity, quite to Hebron. But the proper Edom or Idumæa appears not to have been very extensive, from the march of the Israelites, in which they compassed it on the south eastwards, till they came to the country of the Moabites. Within this compass lies Mount Hor, where Aaron died; marching from which the Israelites fought with King Arad the Canaanite, who came down the wilderness against them (Moses). And this is the extent of the Idumæa Propria lying to the south of the Dead sea;
but in Solomon's time extending to the Red sea, (1 Kings ix. 26.)