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

[93] Yet did Alexander meet both these forces with one thousand horsemen, and eight thousand mercenaries that were on foot. He had also with him that part of the Jews which favored him, to the number of ten thousand; while the adverse party had three thousand horsemen, and fourteen thousand footmen. Now, before they joined battle, the kings made proclamation, and endeavored to draw off each other's soldiers, and make them revolt; while Demetrius hoped to induce Alexander's mercenaries to leave him, and Alexander hoped to induce the Jews that were with Demetrius to leave him. But since neither the Jews would leave off their rage, nor the Greeks prove unfaithful, they came to an engagement, and to a close fight with their weapons. In which battle Demetrius was the conqueror, although Alexander's mercenaries showed the greatest exploits, both in soul and body. Yet did the upshot of this battle prove different from what was expected, as to both of them; for neither did those that invited Demetrius to come to them continue firm to him, though he was conqueror; and six thousand Jews, out of pity to the change of Alexander's condition, when he was fled to the mountains, came over to him. Yet could not Demetrius bear this turn of affairs; but supposing that Alexander was already become a match for him again, and that all the nation would [at length] run to him, he left the country, and went his way.