Upvote:2
did he gain Roman citizenship through trade
AFAIR, Paul had Roman citizenship, because all people of Tarsus got it after the wars of the 2nd Triumvirate, when they showed their loyalty to the triumvirs against Brutus and Cassius. As the legend says, Mark Antonius was trying to proclaim their new high status, just when they all ran to the port to look at the Cleopatra's scarlet sail - Egypt, and the major part of the eastern provinces, were loyal to the republicans, so the queen went to see Mark Antonius and to ask for his mercy. And that's how they met each other for the first time.
But people of Judea didn't get the citizenship, until Caracalla's edict. So Jesus hadn't got it too.