If you stopped and looked at all that Paul had been through, and consider all of the encounters he had with people, and the reactions that they had towards him, it would stand to reason that they had misplaced faith. Think about it; Paul proclaimed Christ to the Jews first, but they rejected Him, placing their faith in their "self-righteousness". The crew that was supposed to transport Paul to Rome had their faith placed in the twin gods Castor and Pollux, whose images were carved into bow of their Alexandrian ship (and who was supposed to "protect them", placing their faith in Greek mythology), but the ship barely made it in one piece. It took Christ's intervention, and Paul's holding to what Christ had promised to sustain not only him, but all who encountered him. Paul finally arrives in Rome, and is allowed to live by himself, though chained to a soldier to guard him.