Genesis 36:9-19

Verse 12

Timna was concubine to Eliphaz - As Timna was sister to Lotan the Horite, Gen 36:22, we see how the family of Esau and the Horites got intermixed. This might give the sons of Esau a pretext to seize the land, and expel the ancient inhabitants, as we find they did, Deu 2:12.

Amalek - The father of the Amalekites, afterwards bitter enemies to the Jews, and whom God commanded to be entirely exterminated, Deu 25:17, Deu 25:19.
Verse 15

Dukes of the sons of Esau - The word duke comes from the Latin dux, a captain or leader. The Hebrew אלוף alluph has the same signification; and as it is also the term for a thousand, which is a grand capital or leading number, probably the אלופי alluphey or dukes had this name from being leaders of or captains over a company of one thousand men; just as those among the Greeks called chiliarchs, which signifies the same; and as the Romans called those centurions who were captains over one hundred men, from the Latin word centum, which signifies a hundred. The ducal government was that which prevailed first among the Idumeans, or descendants of Esau. Here fourteen dukes are reckoned to Esau, seven that came of his wife, Adah, four of Bashemath, and three of Aholibamah.
Verse 16

Duke Korah - This Dr. Kennicott pronounces to be an interpolation. "It is certain, from Gen 36:4, that Eliphaz was Esau's son by Adah; and from Gen 36:11, Gen 36:12, that Eliphaz had but six sons, Teman, Omar, Zepho, Gatam, Kenaz, and Amalek. It is also certain, from Gen 36:5, Gen 36:14, that Korah was the son of Esau (not of Eliphaz) by Aholibamah; and as such he is properly mentioned in Gen 36:18 : These are the sons of Aholibamah, Esau's wife: duke Jeush, duke Jaalam, Duke Korah. It is clear, therefore, that some transcriber has improperly inserted duke Korah in Gen 36:16; from which interpolation both the Samaritan text and the Samaritan version are free." - Kennicott's Remarks. Everything considered, I incline to the opinion that these words were not originally in the text.
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