Flavius Josephus, The Wars of the Jews
William Whiston, A.M., Ed.

[290] Now by this time Herod had sailed out of Italy, and was come to Ptolemais; and as soon as he had gotten together no small army of foreigners, and of his own countrymen, he marched through Galilee against Antigonus, wherein he was assisted by Ventidius and Silo, both whom Dellius, ¹ a person sent by Antony, persuaded to bring Herod [into his kingdom]. Now Ventidius was at this time among the cities, and composing the disturbances which had happened by means of the Parthians, as was Silo in Judea corrupted by the bribes that Antigonus had given him; yet was not Herod himself destitute of power, but the number of his forces increased every day as he went along, and all Galilee, with few exceptions, joined themselves to him. So he proposed to himself to set about his most necessary enterprise, and that was Masada, in order to deliver his relations from the siege they endured. But still Joppa stood in his way, and hindered his going thither; for it was necessary to take that city first, which was in the enemies' hands, that when he should go to Jerusalem, no fortress might be left in the enemies' power behind him. Silo also willingly joined him, as having now a plausible occasion of drawing off his forces [from Jerusalem]; and when the Jews pursued him, and pressed upon him, [in his retreat,] Herod made all excursion upon them with a small body of his men, and soon put them to flight, and saved Silo when he was in distress.