Genesis 36:2

Esau took wives of the daughters of Kenaan, Adah the daughter of Elon the Hittah, and Ahalibama the daughter of Ana, the daughter of Sibeon the Hiva,

ADAH THE DAUGHTER OF ELON. She is identical with Basmath the daughter of Elon, and she was called Basmath because she burned incense (besamim) to the idols. And Oholibamah, (mentioned here), is identical with Judith. In order to deceive his father, the wicked Esau changed her name to Judith (Jewess) to suggest that she had abandoned idol-worship.

עשו לקח את נשיו מבנות כנען, people who read the text carefully cannot help noting that when Esau’s wives’ names are mentioned for the first time in 26,34 they were referred to as יהודית בת בארי החתי and בשמת בת אלון החתי, as well as מחלת בת ישמעאל. In our paragraph no one by the name of בת בארי is mentioned at all, neither the woman’s name nor her father’s name. However אלון as well as ישמעאל the fathers of two of Esau’s wives have been mentioned here also. The names of the daughters have been inverted as happens in many instances. בשמת daughter of אלון is here referred to as עדה בת אלון whereas. It is therefore reasonable to assume that יהודית בת בארי died childless, whereas the other two wives of Esau bore children for him as is enumerated here. Esau took אהליבמה בת ענה בת צבעון החוי as a wife after his move to Seir, when he wanted to strengthen his political ties with the local inhabitants through intermarriage with them. This is why the Torah gave such a detailed account of Oholivamah’s genealogy. Timnah, concubine of Eliphaz, Esau’s firstborn, was also from the original inhabitants of the region of Mount Seir, The reasom why she is mentioned ast, is that the marriage of Esau to Oholivamah occurred last. Chronologically, she belonged to an earlier generation.

ואת אהליבמה בת ענה. She was a member of the tribe of the Chori. She became Esau’s entry card to the whole region of Mount Seir. This is why the Torah reports already in verse 8 that Esau now settled in Mount Seir. His own children and grandchildren subsequently wiped out all the other members of that tribe that had not intermarried with his descendants. This is the reason why the Torah repeats in verse 9 ואלה תולדות עשו אבי אדום בהר שעיר, to inform us obliquely that in the interval Esau had conquered all these people and that Timna became his son’s concubine. Esau’s descendants now became אלופים, “great chiefs.”

עשו, these wives are not now described as having the names which had introduced them to the reader in 26,34 where they were called Yehudit and Bosmat. Each of these women was known by two names. This is a common occurrence throughout Scripture. Similarly, Tzivon had been introduced earlier as Beeri (26,34) and Bosmat in verse 3 of our chapter had previously been introduces as Machalat. (28,9)