These are their generations: the first-born of Ishmael, Nebaioth; then Kedar, and Adbeel, and Mibsam,

And these are the generations of them. The firstborn of Ismahel, Nabajoth, then Cedar, and Adbeel, and Mabsam,

These are their generations: first-born of Ishmael, Nebaioth, and Kedar, and Adheel, and Mibsam,

These are their generations: the oldest son of Ishmael, Nebaioth; then Kedar and Adbeel and Mibsam,

These are their generations - As Shem was reserved until after Japheth and Ham 1-Chronicles 1:5-16, because in him the genealogy was to be continued (Genesis 10:2 note), so Isaac is now reserved until the other lines of descent from Abraham have been completed. The same principle gives the descendants of Esau a prior place to those of Jacob 1 Chr. 1:35-51; 1-Chronicles 2:1.

SONS OF ISHMAEL. (1-Chronicles 1:29-31)
These are their generations--the heads of his twelve tribes. The great northern desert of Arabia, including the entire neck, was colonized by these tribes; and if we can recover, in the modern geography of this part of the country, Arab tribes bearing the names of those patriarchs, that is, names corresponding with those preserved in the original catalogue of Scripture, we obtain at once so many evidences, not of mere similarity, but of absolute identification [FORSTER].
Nebaioth--gave rise to the NabathÃ&brvbr;ans of the classic, and the Beni Nabat of Oriental writers.
Kedar--the Arab tribe, El Khedeyre, on the coast of Hedgar.
Abdeel--Abdilla, the name of a tribe in Yemen.