For your obedience is come abroad unto all men. I am glad therefore on your behalf: but yet I would have you wise unto that which is good, and simple concerning evil.
Ver. 19. For your obedience, &c.] Whereas the Romans might object, Are we also of those simple ones? Your obedience, saith he, is famous all the world over. Howbeit I would have you wise to that which is good, but simple concerning evil. This simplicity is no disparagement, to be unskilled in the devil's depths, Revelation 2:24 .