Where, then, do you show that they renewed the command to flee from city to city? In fact, it was utterly impossible that they should have laid down anything so utterly opposed to their own examples as a command to flee, while it was just from bonds, or the islands in which, for confessing, not fleeing from the Christian name, they were confined, they wrote their letters to the Churches. Paul bids us support the weak, but most certainly it is not when they flee.
Source: On Flight in Persecution