Genesis 10:25

“And unto Eber were born two sons: the name of one was Peleg, etc.] Bochart f724 thinks, that either Peleg, or one of his posterity, in memory of him, gave the name of Phalga to a town situated on the Euphrates; though the reason of the name, as given by Arrianus, as he himself observes, was because it divided between the two Seleucias, as the reason of Peleg’s name was; for in his days was the earth divided; among the three sons of Noah, and their respective posterities; their language was divided, and that obliged them to divide and separate in bodies which understood one another; hence that age, in which was this event, was usually called by the Jews the age of division; whether this was…”

“Peleg; for in his days was the earth divided--After the flood (Gen 11:10-16) the descendants of Noah settled at pleasure and enjoyed the produce of the undivided soil. But according to divine instruction, made probably through Eber, who seems to have been distinguished for piety or a prophetic character, the earth was divided and his son's name, "Peleg," was given in memory of that event (see Deu 32:8; Act 17:26).”

“- XXXIII. Shem 21. אבר 'eber, “‘Eber, yonder side; verb: pass, cross.” 22. עילם 'eylām, “‘Elam.” עוּל ‛ûl, “suckle.” עלם ‛ālam, “hide; be mature.” ארפכשׁד 'arpakshad, “Arpakshad.” כשׂד ארף 'arp keśed, “boundary of Kesed, or (von-Bohlen) Arjapakshata, beside Aria.” ארם 'ǎrām, “Aram, high; verb: be high.” 23. עוּץ ‛ûts, “‘Uts; verb: counsel; be firm, solid.” חוּל chûl, “Chul; verb: rub, twist, writhe, be strong, await.” גתר geter, “Gether, bridge?” משׁ meshek, “Mash; related: feel, touch.” 24. שׁלח shelach, “Shelach, missile, shoot.” 25. פלג peleg, “Peleg; noun: brook, canal; verb: divide.” יקטן yāqṭān, “Joctan, small.” 26. אלמודד 'almôdād, “Almodad.” למד lāmad, “learn.” מדד…”

“10:25 Peleg means division, anticipating the separation of people into language groups after Babel (11:1-9). Peleg’s line led to Abram (see 11:16-26). • Joktan was the ancestor of the southern Arabian tribes. The Ishmaelite tribes were in northern Arabia (see 25:13-16).”