Apocalypse 20:10

“Everlasting joy,” says Isaiah, “shall be upon their heads.” Well, there is nothing eternal until after the resurrection. “And sorrow and sighing,” continues he, “shall flee away.” The angel echoes the same to John: “And God shall wipe away all tears from their eyes;” from the same eyes indeed which had formerly wept, and which might weep again, if the loving-kindness of God did not dry up every fountain of tears. And again: “God shall wipe away all tears from their eyes; and there shall be no more death,” and therefore no more corruption, it being chased away by incorruption, even as death is by immortality. …

8-10. “And they went up upon the breadth of the earth, and compassed the camp of the saints about, and the beloved city; and fire came down from God out of heaven, and devoured them. And the devil who seduced them was cast into the lake of fire and brimstone, where both the beast and the false prophet shall be tormented day and night for ever and ever.”] This belongs to the last judgment. And after a little time the earth was made holy, as being at least that wherein lately had reposed the bodies of the virgins, when they shall enter upon an eternal kingdom with an immortal King, as they who are not only virgins in body, but, moreover, with equal inviolability have protected themselves, both in tongue and thought, from wickedness; and these, it shows, shall dwell in rejoicing for ever with the Lamb.

“After that,” says John, “he must be loosed a little season.” If the binding and shutting up of the devil means his being made unable to seduce the Church, must his loosing be the recovery of this ability? By no means. For the Church predestined and elected before the foundation of the world, the Church of which it is said, “The Lord knoweth them that are His,” shall never be seduced by him. And yet there shall be a Church in this world even when the devil shall be loosed, as there has been since the beginning, and shall be always, the places of the dying being filled by new believers. For a little after John says that the devil, being loosed, shall draw the nations whom he has seduced in the whole world to make war against the Church, and that the number of these enemies shall be as the sand of the sea. …

I would indeed say that these spirits will burn without any body of their own, as that rich man was burning in hell when he exclaimed, “I am tormented in this flame,” were I not aware that it is aptly said in reply, that that flame was of the same nature as the eyes he raised and fixed on Lazarus, as the tongue on which he entreated that a little cooling water might be dropped, or as the finger of Lazarus, with which he asked that this might be done, all of which took place where souls exist without bodies. Thus, therefore, both that flame in which he burned and that drop he begged were immaterial, and resembled the visions of sleepers or persons in an ecstasy, to whom immaterial objects appear in a bodily form. For the man himself who is in such a state, though it be in spirit only, not in body, yet sees himself so like to his own body that he cannot discern any difference whatever. …

First of all, it behoves us to inquire and to recognize why the Church has not been able to tolerate the idea that promises cleansing or indulgence to the devil even after the most severe and protracted punishment. For so many holy men, imbued with the spirit of the Old and New Testament, did not grudge to angels of any rank or character that they should enjoy the blessedness of the heavenly kingdom after being cleansed by suffering, but rather they perceived that they could not invalidate nor evacuate the divine sentence which the Lord predicted that He would pronounce in the judgment, saying, “Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels.” For here it is evident that the devil and his angels shall burn in everlasting fire. …

As for those who find an empty threat rather than a truth in such passages as these: “Depart from me, ye cursed, into everlasting fire;” and “These shall go away into eternal punishment;” and “They shall be tormented for ever and ever;” and “Their worm shall not die, and their fire shall not be quenched,”, such persons, I say, are most emphatically and abundantly refuted, not by me so much as by the divine Scripture itself. For the men of Nineveh repented in this life, and therefore their repentance was fruitful, inasmuch as they sowed in that field which the Lord meant to be sown in tears that it might afterwards be reaped in joy. …