Isaias 51:8

5. Wherefore, my brethren who fear God, remember what the Apostle Peter says: Your adversary, the devil, as a roaring lion, walketh about, seeking whom he may devour.” When he cannot devour a man through seducing him into iniquity, he attempts to injure his good name, that if it be possible, he may give way under the reproaches of men and the calumnies of slandering tongues, and may thus fall into his jaws. If, however, he be unable even to sully the good name of one who is innocent, he tries to persuade him to cherish unkindly suspicions of his brother, and judge him harshly, and so become entangled, and be an easy prey. …

36. Again, let the Pagans laugh, and let them treat with proud and senseless ridicule Christ the Worm and this interpretation of the prophetic symbol, provided that He gradually and surely, nevertheless, consume them. For concerning all such Isaiah prophesies, when by him God says to us, “Hearken unto me, ye that know righteousness, the people in whose heart is my law; fear ye not the reproach of men, neither be ye afraid of their revilings: for the moth shall eat them up as a garment, and the worm shall eat them like wool; but my righteousness shall be for ever.” Let us therefore acknowledge Christ to be the morning-worm, because, moreover, in that psalm which bears the title, “Upon the hind of the morning,” He has been pleased to call Himself by this very name: “I am,” He says, “a worm, and no man, a reproach of men, and despised of the people.” This reproach is one of those reproaches …

Now they who would refer both the fire and the worm to the spirit, and not to the body, affirm that the wicked, who are separated from the kindgdom of God, shall be burned, as it were, by the anguish of a spirit repenting too late and fruitlessly; and they contend that fire is therefore not inappropriately used to express this burning torment, as when the apostle exclaims “Who is offended, and I burn not?” The worm, too, they think, is to be similarly understood. For it is written they say, “As the moth consumes the garment, and the worm the wood, so does grief consume the heart of a man.” But they who make no doubt that in that future punishment both body and soul shall suffer, affirm that the body shall be burned with fire, while the soul shall be, as it were, gnawed by a worm of anguish. …

18. Envy always follows in the track of virtue: as Horace says, it is ever the mountain top that is smitten by the lightning. It is not surprising that I declare this of men and women, when the jealousy of the Pharisees succeeded in crucifying our Lord Himself. All the saints have had illwishers, and even Paradise was not free from the serpent through whose malice death came into the world. So the Lord stirred up against Paula Hadad the Edomite to buffet her that she might not be exalted, and warned her frequently by the thorn in her flesh not to be elated by the greatness of her own virtues or to fancy that, compared with other women, she had attained the summit of perfection. For my part I used to say that it was best to give in to rancour and to retire before passion. So Jacob dealt with his brother Esau; so David met the unrelenting persecution of Saul. …