Genesis 25:12-16

Verse 12

These are the generations of Ishmael - The object of the inspired writer seems to be to show how the promises of God were fulfilled to both the branches of Abraham's family. Isaac has been already referred to; God blessed him according to the promise. He had also promised to multiply Ishmael, and an account of his generation is introduced to show how exactly the promise had also been fulfilled to him.
Verse 13

Nebajoth - From whom came the Nabatheans, whose capital was Petra, or, according to Strabo, Nabathea. They dwelt in Arabia Petraea, and extended themselves on the east towards Arabia Deserta.

Kedar - The founder of the Cedreans, who dwelt near to the Nabatheans. The descendants of Kedar form a part of the Saracens.

Adbeel, and Mibsam - Where these were situated is not known.
Verse 14

Mishma, and Dumah, and Massa - Where the first and last of these settled is not known; but it is probable that Dumah gave his name to a place called Dumah in Arabia. See a prophecy concerning this place, Isa 21:11 (note), from which we find that it was in the vicinity of Mount Seir.

These three names have passed into a proverb among the Hebrews, because of their signification. משמע mishma signifies Hearing; דומה dumah, Silence; and משא massa, Patience. Hence, "Hear much, say little, and bear much," tantamount to the famous maxim of the Stoics, Ανεχου και απεχου, "Sustain and abstain," is supposed to be the spirit of the original words.
Verse 15

Hadar - This name should be read Hadad as in 1Chr 1:30. This reading is supported by more than three hundred MSS., versions, and printed editions. See Clarke at Gen 25:18 (note).

Tema - Supposed to be a place in Arabia Deserta, the same of which Job speaks, Job 6:19.

Jetur - From whom came the Itureans, who occupied a small tract of country beyond Jordan, which was afterwards possessed by the half-tribe of Manasseh.

Naphish - These are evidently the same people mentioned 1Chr 5:19, who, with the Itureans and the people of Nadab, assisted the Hagarenes against the Israelites, but were overcome by the two tribes of Reuben and Gad, and the half-tribe of Manasseh.

Kedemah - Probably the descendants of this person dwelt at Kedemoth, a place mentioned Deu 2:26. I wish the reader to observe, that concerning those ancient tribes mentioned here or elsewhere in the Pentateuch little is known; nor of their places of settlement have we more certain information. On this subject many learned men have toiled hard with but little fruit of their labor. Those who wish to enter into discussions of this nature must consult Bochart's Geographia Sacra, Calmet, etc.
Verse 16

These are their names - By which their descendants were called. Their towns - places of encampment in the wilderness, such as have been used by the Arabs from the remotest times. Their castles, טירתם tirotham, their towers, probably mountain tops, fortified rocks, and fastnesses of various kinds in woods and hilly countries.
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