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

[81] But although the grandees of Adiabene had failed in their first attempt, as being delivered up by God into their king's hands, yet would they not even then be quiet, but wrote again to Vologases, who was then king of Parthia, and desired that he would kill Izates, and set over them some other potentate, who should be of a Parthian family; for they said that they hated their own king for abrogating the laws of their forefathers, and embracing foreign customs. When the king of Parthia heard this, he boldly made war upon Izates; and as he had no just pretense for this war, he sent to him, and demanded back those honorable privileges which had been bestowed on him by his father, and threatened, on his refusal, to make war upon him. Upon hearing of this, Izates was under no small trouble of mind, as thinking it would be a reproach upon him to appear to resign those privileges that had been bestowed upon him out of cowardice; yet because he knew, that though the king of Parthia should receive back those honors, yet would he not be quiet, he resolved to commit himself to God, his Protector, in the present danger he was in of his life; and as he esteemed him to be his principal assistant, he intrusted his children and his wives to a very strong fortress, and laid up his corn in his citadels, and set the hay and the grass on fire. And when he had thus put things in order, as well as he could, he awaited the coming of the enemy. And when the king of Parthia was come, with a great army of footmen and horsemen, which he did sooner than was expected, (for he marched in great haste,) and had cast up a bank at the river that parted Adiabene from Media, - Izates also pitched his camp not far off, having with him six thousand horsemen. But there came a messenger to Izates, sent by the king of Parthia, who told him how large his dominions were, as reaching from the river Euphrates to Bactria, and enumerated that king's subjects; he also threatened him that he should be punished, as a person ungrateful to his lords; and said that the God whom he worshipped could not deliver him out of the king's hands. When the messenger had delivered this his message, Izates replied that he knew the king of Parthia's power was much greater than his own; but that he knew also that God was much more powerful than all men. And when he had returned him this answer, he betook himself to make supplication to God, and threw himself upon the ground, and put ashes upon his head, in testimony of his confusion, and fasted, together with his wives and children. ¹ Then he called upon God, and said, "O Lord and Governor, if I have not in vain committed myself to thy goodness, but have justly determined that thou only art the Lord and principal of all beings, come now to my assistance, and defend me from my enemies, not only on my own account, but on account of their insolent behavior with regard to thy power, while they have not feared to lift up their proud and arrogant tongue against thee." Thus did he lament and bemoan himself, with tears in his eyes; whereupon God heard his prayer. And immediately that very night Vologases received letters, the contents of which were these, that a great band of Dahe and Sacse, despising him, now he was gone so long a journey from home, had made an expedition, and laid Parthis waste; so that he [was forced to] retire back, without doing any thing. And thus it was that Izates escaped the threatenings of the Parthians, by the providence of God.