6 These words are full of humility, and as I think of that spirit which a bishop ought to show towards the Emperor. But since “our contest is not against flesh and blood, but also” (which is worse) “against spiritual wickedness in high places,” that tempter the devil makes the struggle harder by means of his servants, and thinks to make trial of me by the wounds of my flesh. I know, my brethren, that these wounds which we receive for Christ's sake are not wounds that destroy life, but rather extend it. Allow, I pray, the contest to take place. It is for you to be the spectators. Reflect that if a city has an athlete, or one skilled in some other noble art, it is eager to bring him forward for a contest. Why do you refuse to do in a more important matter what you are wont to wish in smaller affairs? He fears not weapons nor barbarians who fears not death, and is not held fast by any pleasures of the flesh.
Source: Sermon against Auxentius (New Advent)