19. It now remains, beloved brethren, that we are bound to show what is the advantage of martyrdom, and that we should teach that especially, so that the fear of the future may stimulate us to this glorious title. Because those to whom great things are promised, seem to have greater things which they are bound to fear. For the soldier does not arouse himself to arms before the enemy have brandished their hostile weapons; nor does a man withdraw his ship in an anchorage, unless the fear of the deep have checked his courage. Moreover also, while eager for his wealth, the considerate husbandman does not stir up the earth with a fortunate ploughshare, before the crumbling glebe is loosened into dust by the rain that it has received. Thus this is the natural practice of every man, to be ignorant of what is of advantage, unless you recognise what has been mischievous. Whence also a reward is given to all the saints, in that the punishment of their deeds is inflicted on the unrighteous. Therefore what the Lord has promised to His people is doubtful to none, however ignorant he is; but neither is there any doubt what punitive fires He threatens. And since my discourse has led me thus to argue about both these classes of things in a few words, as I have already spoken of both, I will briefly explain them.