Genesis 10:30

Mesha Dillmann conjectures "Massa" (Genesis 25:14), a north Arabian tribe. This is not improbable, if this verse delimits the geographical borders of "the sons of Joktan."

Sephar Probably the same as Daphar, a town on the south coast of Arabia.

the mountain of the east Better, as marg., the hill country. Probably the famous frankincense mountain in south Arabia, with Daphar as its furthest point, was reputed the southern limit of "the sons of Joktan."