The boundaries of Edom may be traced with some approach to accuracy. On the East of the ‛Arabah the northern border ran from the Dead Sea, and was marked by Wā̄dy el-Ḳurāḥı̄, or Wādy el-Ḥasā. On the East it marched with the desert. The southern border ran by Elath and Ezion-geber (). On the West of the ‛Arabah the north boundary of Edom is determined by the south border of Israel, as indicated in f: a line running from the Salt Sea southward of the Ascent of Akrabbim to Zin and Kadesh-barnea. This last, we are told, lay in the “uttermost†of the border of Edom (). The line may be generally indicated by the course of Wādy el-Fiḳrah. How much of the uplands West of the ‛Arabah southward to the Gulf of , ‛Aḳaba was included in Edom it is impossible to say.
The name Edom, “red,†may have been derived from the red sandstone cliffs characteristic of the country. It was applied to Esau because of the color of his skin (), or from the color of the pottage for which he sold his birthright (). In Esau is equated with Edom as dwelling in Mt. Seir; and he is described as the father of Edom (, Hebrew). The name however is probably much older. It may be traced in the records of the Twelfth Dynasty in Egypt. In the Tell el-Amarna Letters (Brit Mus No. 64) Udumu, or Edom, is named; and in Assyrian inscriptions the name Udumu occurs of a city and of a country. The latter may have been named from the former: this again may have been derived from a deity, Edom, who may be traced in such a name as Obed-edom ().
4. History
The children of Esau are said to have “destroyed†the Horites who dwelt in Seir before them (; ). This only means that the Horites were subdued. Esau married the daughter of Anah, a Horite ( - in he is called a Hivite); and the lists in this chapter show that the races intermingled. The Horite government was in the hands of “dukes†( f, the Revised Version (British and American) “chiefsâ€). They were succeeded by dukes of the house of Esau (). This form of government gave way to that of an elective monarchy (); and this had existed some time before Israel left the wilderness. The then reigning king would not permit Israel to pass through the land (; ). Israel was forbidden to “abhor an Edomite,†on the ground that he was a brother; and children of the third generation might enter the assembly of the Lord ( f). War with Edom was out of the question.
Some thirty years after the Exodus, Ramses III “smote the people of Seir.†The Israelites could not have been far off. We first hear of war between Israel and Edom under Saul (). David prosecuted the war with terrific energy, slaying 18,000 Edomites (so read instead of “Syriansâ€) in the Valley of Salt ( f) ; Joab remaining for six months in the country, which was garrisoned by Israelites, “until he had cut off every male in Edom†( f). Hadad of the blood royal of Edom escaped to Egypt, and later became a source of trouble to Solomon (,). The conquest of Edom opened to Israel the ports of the Red Sea, whence the expeditions of Solomon and Jehoshaphat set out. In Jehoshaphat's time the king is called a “deputy†(). Its king acknowledged the supremacy of Judah (, etc.). Under Jehoram son of Jehoshaphat, Edom revolted. Jehoram defeated them at Zair, but was unable to quell the rebellion (). Amaziah invaded the country, slew 10,000 in the Valley of Salt, and took Sela which he named Joktheel (). Uzziah restored the Edomite port of Elath (). In the Syrian war Rezin regained Elath for Syria, and cast out the Jews. It was then permanently occupied by Syrians - here also probably we should read Edomites (). From the cuneiform inscriptions we learn that when Tiglath-pileser subdued Rezin, among the kings from whom he received homage at Damascus was Qaus-malaka of Edom (736 bc). Later Malik-ram paid homage to Sennacherib. To Ezarhaddon also they were compelled to render service. They gave what help they could to Nebuchadnezzar, and exulted in the destruction of Jerusalem, stirring the bitterest indignation in the hearts of the Jews (; ; ; ). The Edomites pressed into the now empty lands in the South of Judah. In 300 bc Mt. Seir with its capital Petra fell into the hands of the Nabateans.
5. Idumaea and the Idumeans
West of the ‛Arabah the country they occupied came to be known by the Greek name Idumaea, and the people as Idumeans. Hebron, their chief city, was taken by Judas Maccabeus in 165 bc (1 Macc 4:29, 61; 5:65). In 126 bc the country was subdued by John Hyrcanus, who compelled the people to become Jews and to submit to circumcision. Antipater, governor of Idumaea, was made procurator of Judea, Samaria and Galilee by Julius Caesar. He paved the way to the throne for his son Herod the Great. With the fall of Judah under the Romans, Idumaea disappears from history.