12 Would you have me mention another reason on account of which we fear death? We do not live with strictness, nor keep a clear conscience; for if this were the case nothing would alarm us, neither death, nor famine, nor the loss of wealth, nor anything else of this kind. For he who lives virtuously, cannot be injured by any of these things, or be deprived of his inward pleasure. For being supported by favourable hopes, nothing will be able to throw him into dejection.
What is there that any one can possibly effect, by which he can cause the noble-minded man to become sorrowful? Take away his riches? He has yet wealth that is in the heavens! Cast him out of his country? He will take his journey to that city which is above! Load him with fetters? He has still his conscience free, and is insensible to the external chain! Put his body to death? Yet he shall rise again! And as he who fights with a shadow, and beaten the air, will be unable to hit any one; so he who is at war with the just man, is but striking at a shadow, and wasting his own strength, without being able to inflict any injury upon him.
Grant me then to be sure of the kingdom of heaven; and, if you wish, slay me this day. I shall be thankful to you for the slaughter; forasmuch as you send me quickly to the possession of those good things! “This, however,” says some one, “is what we especially lament, that hindered as we are by the multitude of our sins, we shall not attain to that kingdom.” Such being the case then, leave off lamenting death, and lament your sins, in order that you may be freed from them! Grief, indeed, has had its existence, not that we should sorrow for the loss of wealth, nor for death, nor for anything else of that kind, but that we may employ it for the taking away of our sins. And I will make the truth of this evident by an example.
Healing medicines have been made for those diseases only which they are able to remove; not for those which are in no respect assisted by them. For instance (for I wish to make the matter still plainer), the medicine which is able to benefit a malady of the eyes only, and no other disease, one might justly say was made only for the sake of the eyes; not for the stomach, nor for the hands, nor any other member. Let us then transfer this argument to the subject of grief; and we shall find, that in none of those things which happen to us, is it of any advantage, except to correct sin; whence it is apparent that it has had its existence only for the destruction of this.
Let us now take a survey of each of those evils which befall us, and let us apply despondency as a remedy, and see what sort of advantage results from it.
Source: Homilies on the Statues (New Advent)