Jerome : Verse 10. "And his sons shall be provoked, and they shall assemble a multitude of great armies, and he shall come with haste like a flood. And he shall return and be stirred up, and he shall join battle with his army." After the flight and death of Seleucus Callinicus, his two sons, the Seleucus surnamed Ceraunus and the Antiochus who was called the Great, were provoked by a hope of victory and of avenging their father, and so they assembled an army against Ptolemy Philopator and took up arms. And when the elder brother, Seleucus, was slain in Phrygia in the third year of his reign through the treachery of Nicanor and Apaturius, the army which was in Syria summoned his brother, Antiochus the Great, from Babylon to assume the throne. And so this is the reason why the present passage states that the two sons were provoked and assembled a multitude of very sizable armies. But it implies that Antiochus the Great came by himself from Babylon to Syria, which at that time was held by Ptolemy Philopator, the son of Euergetes and the fourth king to rule in Egypt. And after he had successfully fought with his generals, or rather had by the betrayal of Theodotius obtained possession of Syria (which had already been held by a succession of Egyptian kings), he became so emboldened by his contempt for Philopator's luxurious manner of life and for the magical arts which he was said to employ, that he took the initiative in attempting an invasion of Egypt itself. — St. Jerome, Commentary on Daniel, CHAPTER ELEVEN