the Jews ... moved with envy - seeing their influence undermined by this stranger.
lewd fellows of the baser sort - better, perhaps, “worthless market people,” that is, idle loungers about the market-place, of indifferent character.
gathered a company - rather, “having raised a mob.”
assaulted the house of Jason - with whom Paul and Silas abode (Act 17:7), one of Paul’s kinsmen, apparently (Rom 16:21), and from his name, which was sometimes used as a Greek form of the word Joshua [Grotius], probably a Hellenistic Jew.