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

[438] But as the truth came out in time, it appeared how the affairs of Jotapata really stood; yet was it found that the death of Josephus was a fiction; and when they understood that he was alive, and was among the Romans, and that the commanders treated him at another rate than they treated captives, they were as vehemently angry at him now as they had showed their good-will before, when he appeared to have been dead. He was also abused by some as having been a coward, and by others as a deserter; and the city was full of indignation at him, and of reproaches cast upon him; their rage was also aggravated by their afflictions, and more inflamed by their ill success; and what usually becomes an occasion of caution to wise men, I mean affliction, became a spur to them to venture on further calamities, and the end of one misery became still the beginning of another; they therefore resolved to fall on the Romans the more vehemently, as resolving to be revenged on him in revenging themselves on the Romans. And this was the state of Jerusalem as to the troubles which now came upon it.