Commento su Genesi 36:16

אלוף קרח. Korach had not been mentioned earlier as a son of Eliphaz, but merely as a son of Oholovimah. Perhaps this Korach was another son of Eliphaz who had become an Aluf, and has now been mentioned with the other Aluphim who were sons of Eliphaz.

אלוף קרח, “a chieftain over a thousand, named Korach. This person has already been listed amongst the sons of Eliphaz that has been mentioned in Chronicles I 1,36, seeing that the Korach who was a son of Oholivamah is a different Korach. In the tractate Sotah 13, Rashi explains that there was a Korach who was the son of Eliphaz as well as a Korach who was the son of Oholivamah. Some commentators argue that both times the Torah refers to the same Korach; the reason why the Torah mentions the “second” Korach is only because he lived together with the alufey Eliphaz. His mother Oholivamah died while Korach was still very young and she adopted him and raised him with her own children. We find something parallel concerning Amalek, who is linked together with the sons of Adah because he was the son of Adah’s servant maid.

בארץ אדום, who had been born in the land of Edom and who had risen to the positions of Aluphim there.