10. his sons--the two sons of the king of the north, Seleucus Callinicus, upon his death by a fall from his horse, namely, Seleucus Ceraunus and Antiochus the Great.
      one shall . . . come--Ceraunus having died, Antiochus alone prosecuted the war with Ptolemy Philopater, Euergetes' son, until he had recovered all the parts of Syria subjugated by Euergetes.
      pass through--like an "overflowing" torrent (Da 11:22, 26, 40; Isa 8:8). Antiochus penetrated to Dura (near Cæsarea), where he gave Ptolemy a four months' truce.
      return--renew the war at the expiration of the truce (so Da 11:13).
      even to his fortress--Ptolemy's; Raphia, a border-fortress of Egypt against incursions by way of Edom and Arabia-Petræa, near Gaza; here Antiochus was vanquished.

JFB.