Finally, let no one cause me trouble, for I bear on my body the marks of Jesus.
Whatever does this mean? Nothing to do with the 'stigmata' of Francis of Assisi. Paul certainly had the scars of suffering for Jesus, but these were physical scars from beatings and hardship. I suppose it means two things: that after what he had suffered for Christ he was immune to mere earthly troubles and that as an ambassador for Christ anything aimed at him was aimed at his savior.