Whereas the war which the Jews made with the Romans hath been the greatest of all those, not only that have been in our times, but, in a manner, of those that ever were heard of; both of those wherein cities have fought against cities, or nations against nations; while some men who were not concerned in the affairs themselves have gotten together vain and contradictory stories by hearsay, and have written them down after a sophistical manner; and while those that were there present have given false accounts of things, and this either out of a humor of flattery to the Romans, or of hatred towards the Jews; and while their writings contain sometimes accusations, and sometimes encomiums, but no where the accurate truth of the facts; I have proposed to myself, for the sake of such as live under the government of the Romans, to translate those books into the Greek tongue, which I formerly composed in the language of our country, and sent to the Upper Barbarians; Joseph, the son of Matthias, by birth a Hebrew, a priest also, and one who at first fought against the Romans myself, and was forced to be present at what was done afterwards, am the author of this work].