*Minor differences ignored. Grouped by changes, with first version listed as example.
And Ethnan - After this word we should, with the Targum, read Coz, whose posterity is mentioned in the next verse. Coz was probably the same as Kenaz.
And the sons of Helah,.... The other wife:
were Zereth, and Zoar, and Ethnan: nowhere else mentioned.
The first wife, Helah, bore three sons, Zereth, Jezoar, and Ethnan, who are not elsewhere met with. For the Kethibh יצחר there is in the Keri וצחר, the name of a son of Simeon (Genesis 46:10), and of a Hittite chief in the time of the patriarchs (Genesis 23:8), with whom the son of Helah has nothing to do.
*More commentary available at chapter level.