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

[23] AND now it was that Herod, being desirous of securing himself on the side of the Trachonites, resolved to build a village as large as a city for the Jews, in the middle of that country, which might make his own country difficult to be assaulted, and whence he might be at hand to make sallies upon them, and do them a mischief. Accordingly, when he understood that there was a man that was a Jew come out of Babylon, with five hundred horsemen, all of whom could shoot their arrows as they rode on horde-back, and, with a hundred of his relations, had passed over Euphrates, and now abode at Antioch by Daphne of Syria, where Saturninus, who was then president, had given them a place for habitation, called Valatha, he sent for this man, with the multitude that followed him, and promised to give him land in the toparchy called Batanea, which country is bounded with Trachonitis, as desirous to make that his habitation a guard to himself. He also engaged to let him hold the country free from tribute, and that they should dwell entirely without paying such customs as used to be paid, and gave it him tax-free.