John Chrysostom

"If we suffer, we shall also reign with Him," not absolutely, we shall reign, but "if we suffer," showing that it is not enough to die once, (the blessed man himself died daily,) but there was need of much patient endurance; and especially Timothy had need of it. For tell me not, he says, of your first sufferings, but that you continue to suffer. Then on the other side he exhorts him, not from the good, but from the evil. For if wicked men were to partake of the same things, this would be no consolation. And if having endured they were to reign with Him, but not having endured were not indeed to reign with Him, but were to suffer no worse evil, though this were terrible, yet it would not be enough to affect most men with concern. Wherefore he speaks of something more dreadful still. If we deny Him, He will also deny us. So then there is a retribution not of good things only, but of the contrary. And consider What it is probable that he will suffer, who is denied in that kingdom. "Whosoever shall deny Me, him will I also deny." (Matt. x. 33.) And the retribution is not equal, though it seems so expressed. For we who deny Him are men, but He who denies us is God; and how great is the distance between God and man, it is needless to say. Besides, we injure ourselves; Him we cannot injure.