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

[318] But when the governor of Babylonia understood this, and had a mind to put a stop to them before they grew greater, and before greater mischiefs should arise from them, he got together as great an army as he could, both of Parthians and Babylonians, and marched against them, thinking to attack them and destroy them before any one should carry them the news that he had got an army together. He then encamped at a lake, and lay still; but on the next day (it was the sabbath, which is among the Jews a day of rest from all sorts of work) he supposed that the enemy would not dare to fight him thereon, but that he would take them and carry them away prisoners, without fighting. He therefore proceeded gradually, and thought to fall upon them on the sudden. Now Asineus was sitting with the rest, and their weapons lay by them; upon which he said, "Sirs, I hear a neighing of horses; not of such as are feeding, but such as have men on their backs; I also hear such a noise of their bridles, that I am afraid that some enemies are coming upon us to encompass us round. However, let somebody go to look about, and make report of what reality there is in the present state of things; and may what I have said prove a false alarm." And when he had said this, some of them went out to spy out what was the matter; and they came again immediately, and said to him, that "neither hast thou been mistaken in telling us what our enemies were doing, nor will those enemies permit us to be injurious to people any longer. We are caught by their intrigues like brute beasts, and there is a large body of cavalry marching upon us, while we are destitute of hands to defend ourselves withal, because we are restrained from doing it by the prohibition of our law, which obliges us to rest [on this day]." But Asiueus did not by any means agree with the opinion of his spy as to what was to be done, but thought it more agreeable to the law to pluck up their spirits in this necessity they were fallen into, and break their law by avenging themselves, although they should die in the action, than by doing nothing to please their enemies in submitting to be slain by them. Accordingly, he took up his weapons, and infused courage into those that were with him to act as courageously as himself. So they fell upon their enemies, and slew a great many of them, because they despised them and came as to a certain victory, and put the rest to flight.