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.
XIX. Jam superest, charissimi fratres, ut debeamus ostendere cui rei martyrium prosit, atque, ut illud profecto doceamus quod nos ad hunc gloriae titulum metus excitet futurorum. Etenim quibus magna promissa sunt, magis magna sunt quae metuenda illis esse videantur. Nam nec se in arma miles accendit priusquam inimica hostes tela commoverint: nec navem aliquis statione subducit nisi animum pelagi pavor strinxerit: sed et intentans suis opibus scrutator agricola non ante felici terram suscitat vomere quam in pulverem imbre concepto putris gleba solvatur. Ita est omnis naturalis hic usus, nescire quid prosit nisi agnoveris quod occidit. 0798B Unde et datur sanctis omnibus praemium, dum infliguntur injustis tormenta factorum. Igitur quae suis promiserit Dominus nemini qui nesciat dubium, sed nec dubium quantos minetur ignes suppliciorum. Et, quoniam ita se attulit sermo ut de utrisque habeatur ratio, paucis, ut de utrisque dixi, breviter exponam.