On the Resurrection, and the Judgment, the Fire of Hell, and Punishments
1 But since the discourse has reminded us of the subjects of a future judgment and of retribution, and of the punishments of sinners, according to the threatenings of holy Scripture and the contents of the Church's teaching— viz., that when the time of judgment comes, everlasting fire, and outer darkness, and a prison, and a furnace, and other punishments of like nature, have been prepared for sinners— let us see what our opinions on these points ought to be. But that these subjects may be arrived at in proper order, it seems to me that we ought first to consider the nature of the resurrection, that we may know what that (body) is which shall come either to punishment, or to rest, or to happiness; which question in other treatises which we have composed regarding the resurrection we have discussed at greater length, and have shown what our opinions were regarding it. But now, also, for the sake of logical order in our treatise, there will be no absurdity in restating a few points from such works, especially since some take offense at the creed of the Church, as if our belief in the resurrection were foolish, and altogether devoid of sense; and these are principally heretics, who, I think, are to be answered in the following manner. If they also admit that there is a resurrection of the dead, let them answer us this, What is that which died? Was it not a body? It is of the body, then, that there will be a resurrection. Let them next tell us if they think that we are to make use of bodies or not. I think that when the Apostle Paul says, that “it is sown a natural body, it will arise a spiritual body,” they cannot deny that it is a body which arises, or that in the resurrection we are to make use of bodies. What then? If it is certain that we are to make use of bodies, and if the bodies which have fallen are declared to rise again (for only that which before has fallen can be properly said to rise again), it can be a matter of doubt to no one that they rise again, in order that we may be clothed with them a second time at the resurrection. The one thing is closely connected with the other. For if bodies rise again, they undoubtedly rise to be coverings for us; and if it is necessary for us to be invested with bodies, as it is certainly necessary, we ought to be invested with no other than our own. But if it is true that these rise again, and that they arise “spiritual” bodies, there can be no doubt that they are said to rise from the dead, after casting away corruption and laying aside mortality; otherwise it will appear vain and superfluous for any one to arise from the dead in order to die a second time. And this, finally, may be more distinctly comprehended thus, if one carefully consider what are the qualities of an animal body, which, when sown into the earth, recovers the qualities of a spiritual body. For it is out of the animal body that the very power and grace of the resurrection educe the spiritual body, when it transmutes it from a condition of indignity to one of glory.
2. Since the heretics, however, think themselves persons of great learning and wisdom, we shall ask them if every body has a form of some kind, i.e., is fashioned according to some shape. And if they shall say that a body is that which is fashioned according to no shape, they will show themselves to be the most ignorant and foolish of mankind. For no one will deny this, save him who is altogether without any learning. But if, as a matter of course, they say that every body is certainly fashioned according to some definite shape, we shall ask them if they can point out and describe to us the shape of a spiritual body; a thing which they can by no means do. We shall ask them, moreover, about the differences of those who rise again. How will they show that statement to be true, that there is “one flesh of birds, another of fishes; bodies celestial, and bodies terrestrial; that the glory of the celestial is one, and the glory of the terrestrial another; that one is the glory of the sun, another the glory of the moon, another the glory of the stars; that one star differs from another star in glory; and that so is the resurrection of the dead?” According to that gradation, then, which exists among heavenly bodies, let them show to us the differences in the glory of those who rise again; and if they have endeavoured by any means to devise a principle that may be in accordance with the differences in heavenly bodies, we shall ask them to assign the differences in the resurrection by a comparison of earthly bodies. Our understanding of the passage indeed is, that the apostle, wishing to describe the great difference among those who rise again in glory, i.e., of the saints, borrowed a comparison from the heavenly bodies, saying, “One is the glory of the sun, another the glory of the moon, another the glory of the stars.” And wishing again to teach us the differences among those who shall come to the resurrection, without having purged themselves in this life, i.e., sinners, he borrowed an illustration from earthly things, saying, “There is one flesh of birds, another of fishes.” For heavenly things are worthily compared to the saints, and earthly things to sinners. These statements are made in reply to those who deny the resurrection of the dead, i.e., the resurrection of bodies.
Source: De Principiis (New Advent)