Summa - Supplement 1544
Objection 1: It would seem that the resurrection will not happen suddenly but by degrees. For the resurrection of the dead is foretold (Ez 37,7-8) where it is written: "The bones came together . . . and I saw and behold the sinews and the flesh came up upon them, and the skin was stretched out over them, but there was no spirit in them." Therefore the restoration of the bodies will precede in time their reunion with the souls, and thus the resurrection will not be sudden.
Objection 2: Further, a thing does not happen suddenly if it require several actions following one another. Now the resurrection requires several actions following one another, namely the gathering of the ashes, the refashioning of the body, the infusion of the soul. Therefore the resurrection will not be sudden.
Objection 3: Further, all sound is measured by time. Now the sound of the trumpet will be the cause of the resurrection, as stated above (Question , Article ). Therefore the resurrection will take time and will not happen suddenly.
Objection 4: Further, no local movement can be sudden as stated in De Sensu et Sensato vii. Now the resurrection requires local movement in the gathering of the ashes. Therefore it will not happen suddenly.
On the contrary, It is written (1Co 15,51-52): "We shall all indeed rise again . . . in a moment, in the twinkling of an eye." Therefore the resurrection will be sudden.
Further, infinite power works suddenly. But the Damascene says (De Fide Orth. iv): "Thou shalt believe in the resurrection to be wrought by the power of God," and it is evident that this is infinite. Therefore the resurrection will be sudden.
I answer that, At the resurrection something will be done by the ministry of the angels, and something immediately by the power of God, as stated above (Question , Article ). Accordingly that which is done by the ministry of the angels, will not be instantaneous, if by instant we mean an indivisible point of time, but it will be instantaneous if by instant we mean an imperceptible time. But that which will be done immediately by God's power will happen suddenly, namely at the end of the time wherein the work of the angels will be done, because the higher power brings the lower to perfection.
Reply to Objection 1: Ezechiel spoke, like Moses to a rough people, and therefore, just as Moses divided the works of the six days into days, in order that the uncultured people might be able to understand, although all things were made together according to Augustine (Gn ad lit. iv), so Ezechiel expressed the various things that will happen in the resurrection, although they will all happen together in an instant.
Reply to Objection 2: Although these actions follow one another in nature, they are all together in time: because either they are together in the same instant, or one is in the instant that terminates the other.
Objection 3: The same would seem to apply to that sound as to the forms of the sacraments, namely that the sound will produce its effect in its last instant.
Reply to Objection 4: The gathering of the ashes which cannot be without local movement will be done by the ministry of the angels. Hence it will be in time though imperceptible on account of the facility of operation which is competent to the angels.
We must now consider the term "wherefrom" of the resurrection; and under this head there are three points of inquiry:
(1) Whether death is the term "wherefrom" of the resurrection in every case?
(2) Whether ashes are, or dust?
(3) Whether this dust has a natural inclination towards the soul?
Objection 1: It would seem that death will not be the term "wherefrom" of the resurrection in all cases. Because some shall not die but shall be clothed with immortality: for it is said in the creed that our Lord "will come to judge the living and the dead." Now this cannot refer to the time of judgment, because then all will be alive; therefore this distinction must refer to the previous time, and consequently all will not die before the judgment.
Objection 2: Further, a natural and common desire cannot be empty and vain, but is fulfilled in some cases. Now according to the Apostle (2Co 5,4) it is a common desire that "we would not be unclothed but clothed upon." Therefore there will be some who will never be stripped of the body by death, but will be arrayed in the glory of the resurrection.
Objection 3: Further, Augustine says (Enchiridion cxv) that the four last petitions of the Lord's prayer refer to the present life: and one of them is: "Forgive us our debts [Douay: 'trespasses']." Therefore the Church prays that all debts may be forgiven her in this life. Now the Church's prayer cannot be void and not granted: "If you ask the Father anything in My name, He will give it you" (Jn 16,23). Therefore at some time of this life the Church will receive the remission of all debts: and one of the debts to which we are bound by the sin of our first parent is that we be born in original sin. Therefore at some time God will grant to the Church that men be born without original sin. But death is the punishment of original sin. Therefore at the end of the world there will be some men who will not die: and so the same conclusion follows.
Objection 4: Further, the wise man should always choose the shortest way. Now the shortest way is for the men who shall be found living to be transferred to the impassibility of the resurrection, than for them to die first, and afterwards rise again from death to immortality. Therefore God Who is supremely wise will choose this way for those who shall be found living.
On the contrary, It is written (1Co 15,36): "That which thou sowest is not quickened except it die first," and he is speaking of the resurrection of the body as compared to the seed.
Further, it is written (1Co 15,22): "As in Adam all die, so also in Christ all shall be made alive." Now all shall be made alive in Christ. Therefore all shall die in Adam: and so all shall rise again from death.
I answer that, The saints differ in speaking on this question, as may be seen in the text (Sent. iv, D, 43). However, the safer and more common opinion is that all shall die and rise again from death: and this for three reasons. First, because it is more in accord with Divine justice, which condemned human nature for the sin of its first parent, that all who by the act of nature derive their origin from him should contract the stain of original sin, and consequently be the debtors of death. Secondly, because it is more in agreement with Divine Scripture which foretells the resurrection of all; and resurrection is not predicted properly except of that "which has fallen and perished," as the Damascene says (De Fide Orth. iv). Thirdly, because it is more in harmony with the order of nature where we find that what is corrupted and decayed is not renewed except by means of corruption: thus vinegar does not become wine unless the vinegar be corrupted and pass into the juice of the grape. Wherefore since human nature has incurred the defect of the necessity of death, it cannot return to immortality save by means of death. It is also in keeping with the order of nature for another reason, because, as it is stated in Phys. viii, 1, "the movement of heaven is as a kind of life to all existing in nature," just as the movement of the heart is a kind of life of the whole body: wherefore even as all the members become dead on the heart ceasing to move, so when the heavenly movement ceases nothing can remain living with that life which was sustained by the influence of that movement. Now such is the life by which we live now: and therefore it follows that those who shall live after the movement of the heaven comes to a standstill must depart from this life.
Reply to Objection 1: This distinction of the dead and the living does not apply to the time itself of the judgment, nor to the whole preceding time, since all who are to be judged were living at some time, and dead at some time: but it applies to that particular time which shall precede the judgment immediately, when, to wit, the signs of the judgment shall begin to appear.
Reply to Objection 2: The perfect desire of the saints cannot be void; but nothing prevents their conditional desire being void. Such is the desire whereby we would not be "unclothed," but "clothed upon," namely if that be possible: and this desire is called by some a "velleity."
Reply to Objection 3: It is erroneous to say that any one except Christ is conceived without original sin, because those who would be conceived without original sin would not need the redemption which was wrought by Christ, and thus Christ would not be the Redeemer of all men [*See Editor's note which follows TP, Question ]. Nor can it be said that they needed not this redemption, because it was granted to them that they should be conceived without sin. For, this grace was vouchsafed---either to their parents, that the sin of nature might be healed in them (because so long as that sin remained they were unable to beget without communicating original sin)---or to nature itself which was healed. Now we must allow that every one needs the redemption of Christ personally, and not only by reason of nature, and one cannot be delivered from an evil or absolved from a debt unless one incur the debt or incur the evil: and consequently all could not reap in themselves the fruit of the Lord's prayer, unless all were born debtors and subject to evil. Hence the forgiveness of debts or delivery from evil cannot be applied to one who is born without a debt or free from evil, but only to one who is born with a debt and is afterwards delivered by the grace of Christ. Nor does it follow, if it can be asserted without error that some die not, that they are born without original sin, although death is a punishment of original sin; because God can of His mercy remit the punishment which one has incurred by a past fault, as He forgave the adulterous woman without punishment (Jn 8): and in like manner He can deliver from death those who have contracted the debt of death by being born in original sin. And thus it does not follow that if they die not, therefore they were born without original sin.
Reply to Objection 4: The shortest way is not always the one to be chosen, but only when it is more or equally adapted for attaining the end. It is not so here, as is clear from what we have said.
Objection 1: It would seem that all will not rise again from ashes. For Christ's resurrection is the exemplar of ours. Yet His resurrection was not from ashes, for His flesh saw not corruption according to Ps 15,10; Ac 2,27 Ac 2,31. Therefore neither will all rise again from ashes.
Objection 2: Further, the human body is not always burned. Yet a thing cannot be reduced to ashes unless it be burned. Therefore not all will rise again from ashes.
Objection 3: Further, the body of a dead man is not reduced to ashes immediately after death. But some will rise again at once after death, according to the text (Sent. iv, D, 43), namely those who will be found living. Therefore all will not rise again from ashes.
Objection 4: Further, the term "wherefrom" corresponds to the term "whereto." Now the term "whereto" of the resurrection is not the same in the good as in the wicked: "We shall all indeed rise again, but we shall not all be changed" (1Co 15,51). Therefore the term "wherefrom" is not the same. And thus, if the wicked rise again from ashes, the good will not rise again from ashes.
On the contrary, Haymo says (on Rm 5,10, "For if when we were enemies"): "All who are born in original sin lie under the sentence: Earth thou art and into earth shalt thou go." Now all who shall rise again at the general resurrection were born in original sin, either at their birth within the womb or at least at their birth from the womb. Therefore all will rise again from ashes.
Further, there are many things in the human body that do not truly belong to human nature. But all these will be removed. Therefore all bodies must needs be reduced to ashes.
I answer that, The same reasons by which we have shown (Article ) that all rise again from death prove also that at the general resurrection all will rise again from ashes, unless the contrary, such as the hastening of their resurrection, be vouchsafed to certain persons by a special privilege of grace. For just as holy writ foretells the resurrection, so does it foretell the reformation of bodies (Ph 3,21). And thus it follows that even as all die that the bodies of all may be able truly to rise again, so will the bodies of all perish that they may be able to be reformed. For just as death was inflicted by Divine justice as a punishment on man, so was the decay of the body, as appears from Gn 3,19, "Earth thou art and into earth shalt thou go [*Vulg.: 'Dust thou art and into dust thou shalt return']."
Moreover the order of nature requires the dissolution not only of the union of soul and body, but also of the mingling of the elements: even as vinegar cannot be brought back to the quality of wine unless it first be dissolved into the prejacent matter: for the mingling of the elements is both caused and preserved by the movement of the heaven, and when this ceases all mixed bodies will be dissolved into pure elements.
Reply to Objection 1: Christ's resurrection is the exemplar of ours as to the term "whereto," but not as to the term "wherefrom."
Reply to Objection 2: By ashes we mean all the remains that are left after the dissolution of the body---for two reasons. First, because it was the common custom in olden times to burn the bodies of the dead, and to keep the ashes, whence it became customary to speak of the remains of a human body as ashes. Secondly, on account of the cause of dissolution, which is the flame of the fomes [*Cf. FS, Question , Article ] whereby the human body is radically infected. Hence, in order to be cleansed of this infection the human body must needs be dissolved into its primary components: and when a thing is destroyed by fire it is said to be reduced to ashes. wherefore the name of ashes is given to those things into which the human body is dissolved.
Reply to Objection 3: The fire that will cleanse the face of the earth will be able to reduce suddenly to ashes the bodies of those that will be found living, even as it will dissolve other mixed bodies into their prejacent matter.
Reply to Objection 4: Movement does not take its species from its term "wherefrom" but from its term "whereto." Hence the resurrection of the saints which will be glorious must needs differ from the resurrection of the wicked which will not be glorious, in respect of the term "whereto," and not in respect of the term "wherefrom." And it often happens that the term "whereto" is not the same, whereas the term "wherefrom" is the same---for instance, a thing may be moved from blackness to whiteness and to pallor.
Objection 1: It would seem that the ashes from which the human body will be restored will have a natural inclination towards the soul which will be united to them. For if they had no inclination towards the soul, they would stand in the same relation to that soul as other ashes. Therefore it would make no difference whether the body that is to be united to that soul were restored from those ashes or from others: and this is false.
Objection 2: Further, the body is more dependent on the soul than the soul on the body. Now the soul separated from the body is still somewhat dependent on the body, wherefore its movement towards God is retarded on account of its desire for the body, as Augustine says (Gn ad lit. xii). Much more, therefore, has the body when separated from the soul, a natural inclination towards that soul.
Objection 3: Further, it is written (Jb 20,11): "His bones shall be filled with the vices of his youth, and they shall sleep with him in the dust." But vices are only in the soul. Therefore there will still remain in those ashes a natural inclination towards the soul.
On the contrary, The human body can be dissolved into the very elements, or changed into the flesh of other animals. But the elements are homogeneous, and so is the flesh of a lion or other animal. Since then in the other parts of the elements or animals there is no natural inclination to that soul, neither will there be an inclination towards the soul in those parts into which the human body has been changed. The first proposition is made evident on the authority of Augustine (Enchiridion lxxxviii): "The human body, although changed into the substance of other bodies or even into the elements, although it has become the food and flesh of any animals whatsoever, even of man, will in an instant return to that soul which erstwhile animated it, making it a living and growing man."
Further, to every natural inclination there corresponds a natural agent: else nature would fail in necessaries. Now the aforesaid ashes cannot be reunited to the same soul by any natural agent. Therefore there is not in them any natural inclination to the aforesaid reunion.
I answer that, Opinion is threefold on this point. For some say that the human body is never dissolved into its very elements; and so there always remains in the ashes a certain force besides the elements, which gives a natural inclination to the same soul. But this assertion is in contradiction with the authority of Augustine quoted above, as well as with the senses and reason: since whatever is composed of contraries can be dissolved into its component parts. Wherefore others say that these parts of the elements into which the human body is dissolved retain more light, through having been united to the soul, and for this reason have a
natural inclination to human souls. But this again is nonsensical, since the parts of the elements are of the same nature and have an equal share of light and darkness. Hence we must say differently that in those ashes there is no natural inclination to resurrection, but only by the ordering of Divine providence, which decreed that those ashes should be reunited to the soul: it is on this account that those parts of the elements shall be reunited and not others.
Hence the Reply to the First Objection is clear.
Reply to Objection 2: The soul separated from the body remains in the same nature that it has when united to the body. It is not so with the body, and consequently the comparison fails.
Reply to Objection 3: These words of Job do not mean that the vices actually remain in the ashes of the dead, but that they remain according to the ordering of Divine justice, whereby those ashes are destined to the restoration of the body which will suffer eternally for the sins committed.
In the next place we must consider the conditions of those who rise again. Here we shall consider: (1) Those which concern the good and wicked in common; (2) those which concern the good only; (3) those which concern only the wicked. Three things concern the good and wicked in common, namely their identity, their integrity, and their quality: and we shall inquire (1) about their identity; (2) about their integrity; (3) about their quality.
Under the first head there are three points of inquiry:
(1) Whether the body will rise again identically the same?
(2) Whether it will be the self-same man?
(3) Whether it is necessary that the same ashes should return to the same parts in which they were before?
Objection 1: It would seem that the soul will not be reunited to the same identical body at the resurrection, for "thou sowest not the body that shall be, but bare grain" (1Co 15,37). Now the Apostle is there comparing death to sowing and resurrection to fructifying. Therefore the same body that is laid aside in death is not resumed at the resurrection.
Objection 2: Further, to every form some matter is adapted according to its condition, and likewise to every agent some instrument. Now the body is compared to the soul as matter to form, and as instrument to agent. Since then at the resurrection the soul will not be of the same condition as now (for it will be either entirely borne away to the heavenly life to which it adhered while living in the world, or will be cast down into the life of the brutes if it lived as a brute in this world) it would seem that it will not resume the same body, but either a heavenly or a brutish body.
Objection 3: Further, after death, as stated above (Question , Article ), the human body is dissolved into the elements. Now these elemental parts into which the human body has been dissolved do not agree with the human body dissolved into them, except in primary matter, even as any other elemental parts agree with that same body. But if the body were to be formed from those other elemental parts, it would not be described as identically the same. Therefore neither will it be the self-same body if it be restored from these parts.
Objection 4: Further, there cannot be numerical identity where there is numerical distinction of essential parts. Now the form of the mixed body, which form is an essential part of the human body, as being its form, cannot be resumed in numerical identity. Therefore the body will not be identically the same. The minor is proved thus: That which passes away into complete nonentity cannot be resumed in identity. This is clear from the fact that there cannot be identity where there is distinction of existence: and existence, which is the act of a being, is differentiated by being interrupted, as is any interrupted act. Now the form of a mixed body passes away into complete nonentity by death, since it is a bodily form, and so also do the contrary qualities from which the mixture results. Therefore the form of a mixed body does not return in identity.
On the contrary, It is written (Jb 19,26): "In my flesh I shall see God my Saviour [Vulg.: 'my God']," where he is speaking of the vision after the resurrection, as appears from the preceding words: "In the last day I shall rise out of the earth." Therefore the selfsame body will rise again.
Further, the Damascene says (De Fide Orth. iv, 27): "Resurrection is the second rising of that which has fallen." But the body which we have now fell by death. Therefore it will rise again the same identically.
I answer that, on this point the philosophers erred and certain modern heretics err. For some of the philosophers allowed that souls separated from bodies are reunited to bodies, yet they erred in this in two ways. First, as to the mode of reunion, for some held the separated soul to be naturally reunited to a body by the way of generation. Secondly, as to the body to which it was reunited, for they held that this second union was not with the selfsame body that was laid aside in death, but with another, sometimes of the same, sometimes of a different species. Of a different species when the soul while existing in the body had led a life contrary to the ordering of reason: wherefore it passed after death from the body of a man into the body of some other animal to whose manner of living it had conformed in this life, for instance into the body of a dog on account of lust, into the body of a lion on account of robbery and violence, and so forth---and into a body of the same species when the soul has led a good life in the body, and having after death experienced some happiness, after some centuries began to wish to return to the body; and thus it was reunited to a human body.
This opinion arises from two false sources. The first of these is that they said that the soul is not united to the body essentially as form to matter, but only accidentally, as mover to the thing moved, [*Cf. FP, Question , Article ] or as a man to his clothes. Hence it was possible for them to maintain that the soul pre-existed before being infused into the body begotten of natural generation, as also that it is united to various bodies. The second is that they held intellect not to differ from sense except accidentally, so that man would be said to surpass other animals in intelligence, because the sensitive power is more acute in him on account of the excellence of his bodily complexion; and hence it was possible for them to assert that man's soul passes into the soul of a brute animal, especially when the human soul has been habituated to brutish actions. But these two sources are refuted by the Philosopher (De Anima ii, 1), and in consequence of these being refuted, it is clear that the above opinion is false.
In like manner the errors of certain heretics are refuted. Some of them fell into the aforesaid opinions of the philosophers: while others held that souls are reunited to heavenly bodies, or again to bodies subtle as the wind, as Gregory relates of a certain Bishop of Constantinople, in his exposition of Jb 19,26, "In my flesh I shall see my God," etc. Moreover these same errors of heretics may be refuted by the fact that they are prejudicial to the truth of resurrection as witnessed to by Holy Writ. For we cannot call it resurrection unless the soul return to the same body, since resurrection is a second rising, and the same thing rises that falls: wherefore resurrection regards the body which after death falls rather than the soul which after death lives. And consequently if it be not the same body which the soul resumes, it will not be a resurrection, but rather the assuming of a new body.
Reply to Objection 1: A comparison does not apply to every particular, but to some. For in the sowing of grain, the grain sown and the grain that is born thereof are neither identical, nor of the same condition, since it was first sown without a husk, yet is born with one: and the body will rise again identically the same, but of a different condition, since it was mortal and will rise in immortality.
Reply to Objection 2: The soul rising again and the soul living in this world differ, not in essence but in respect of glory and misery, which is an accidental difference. Hence it follows that the body in rising again differs, not in identity, but in condition, so that a difference of bodies corresponds proportionally to the difference of souls.
Reply to Objection 3: That which is understood as though it were in matter before its form remains in matter after corruption, because when that which comes afterwards is removed that which came before may yet remain. Now, as the Commentator observes on the First Book of Physics and in De Substantia Orbis, in the matter of things subject to generation and corruption, we must presuppose undeterminate dimensions, by reason of which matter is divisible, so as to be able to receive various forms in its various parts. Wherefore after the separation of the substantial form from matter, these dimensions still remain the same: and consequently the matter existing under those dimensions, whatever form it receive, is more identified with that which was generated from it, than any other part of matter existing under any form whatever. Thus the matter that will be brought back to restore the human body will be the same as that body's previous matter.
Reply to Objection 4: Even as a simple quality is not the substantial form of an element, but its proper accident, and the disposition whereby its matter is rendered proper to such a form; so the form of a mixed body, which form is a quality resulting from simple qualities reduced to a mean, is not the substantial form of the mixed body, but its proper accident, and the disposition whereby the matter is in need of the form. Now the human body has no substantial form besides this form of the mixed body, except the rational soul, for if it had any previous substantial form, this would give it substantial being, and would establish it in the genus of substance: so that the soul would be united to a body already established in the genus of substance, and thus the soul would be compared to the body as artificial forms are to their matter, in respect of their being established in the genus of substance by their matter. Hence the union of the soul to the body would be accidental, which is the error of the ancient philosophers refuted by the Philosopher (De Anima ii, 2 [*Cf. FP, Question , Article ]). It would also follow that the human body and each of its parts would not retain their former names in the same sense, which is contrary to the teaching of the Philosopher (De Anima ii, 1). Therefore since the rational soul remains, no substantial form of the human body falls away into complete nonentity. And the variation of accidental forms does not make a difference of identity. Therefore the selfsame body will rise again, since the selfsame matter is resumed as stated in a previous reply (ad 2).
Objection 1: It would seem that it will not be identically the same man that shall rise again. For according to the Philosopher (De Gener. ii): "Whatsoever things are changed in their corruptible substance are not repeated identically." Now such is man's substance in his present state. Therefore after the change wrought by death the self-same man cannot be repeated .
Objection 2: Further, where there is a distinction of human nature there is not the same identical man: wherefore Socrates and Plato are two men and not one man, since each has his own distinct human nature. Now the human nature of one who rises again is distinct from that which he has now. Therefore he is not the same identical man. The minor can be proved in two ways. First, because human nature which is the form of the whole is not both form and substance as the soul is, but is a form only. Now such like forms pass away into complete nonentity, and consequently they cannot be restored. Secondly, because human nature results from union of parts. Now the same identical union as that which was heretofore cannot be resumed, because repetition is opposed to identity, since repetition implies number, whereas identity implies unity, and these are incompatible with one another. But resurrection is a repeated union: therefore the union is not the same, and consequently there is not the same human nature nor the same man.
Objection 3: Further, one same man is not several animals: wherefore if it is not the same animal it is not the same identical man. Now where sense is not the same, there is not the same animal, since animal is defined from the primary sense, namely touch. But sense, as it does not remain in the separated soul (as some maintain), cannot be resumed in identity. Therefore the man who rises again will not be the same identical animal, and consequently he will not be the same man.
Objection 4: Further, the matter of a statue ranks higher in the statue than the matter of a man does in man: because artificial things belong to the genus of substance by reason of their matter, but natural things by reason of their form, as appears from the Philosopher (Phys. ii, 1), and again from the Commentator (De Anima ii). But if a statue is remade from the same brass, it will not be the same identically. Therefore much less will it be identically the same man if he be reformed from the same ashes.
On the contrary, It is written (Jb 19,27): "Whom I myself shall see . . . and not another," and he is speaking of the vision after the resurrection. Therefore the same identical man will rise again.
Further, Augustine says (De Trin. viii, 5) that "to rise again is naught else but to live again." Now unless the same identical man that died return to life, he would not be said to live again. Therefore he would not rise again, which is contrary to faith.
I answer that, The necessity of holding the resurrection arises from this---that man may obtain the last end for which he was made; for this cannot be accomplished in this life, nor in the life of the separated soul, as stated above (Question , Articles ,2): otherwise man would have been made in vain, if he were unable to obtain the end for which he was made. And since it behooves the end to be obtained by the selfsame thing that was made for that end, lest it appear to be made without purpose, it is necessary for the selfsame man to rise again; and this is effected by the selfsame soul being united to the selfsame body. For otherwise there would be no resurrection properly speaking, if the same man were not reformed. Hence to maintain that he who rises again is not the selfsame man is heretical, since it is contrary to the truth of Scripture which proclaims the resurrection.
Reply to Objection 1: The Philosopher is speaking of repetition by movement or natural change. For he shows the difference between the recurrence that occurs in generation and corruption and that which is observed in the movement of the heavens. Because the selfsame heaven by local movement returns to the beginning of its movement, since it has a moved incorruptible substance. On the other hand, things subject to generation and corruption return by generation to specific but not numerical identity, because from man blood is engendered, from blood seed, and so on until a man is begotten, not the selfsame man, but the man specifically. In like manner from fire comes air, from air water, from water earth, whence fire is produced, not the selfsame fire, but the same in species. Hence it is clear that the argument, so far as the meaning of the Philosopher is concerned, is not to the point.
We may also reply that the form of other things subject to generation and corruption is not subsistent of itself, so as to be able to remain after the corruption of the composite, as it is with the rational soul. For the soul, even after separation from the body, retains the being which accrues to it when in the body, and the body is made to share that being by the resurrection, since the being of the body and the being of the soul in the body are not distinct from one another, otherwise the union of soul and body would be accidental. Consequently there has been no interruption in the substantial being of man, as would make it impossible for the self-same man to return on account of an interruption in his being, as is the case with other things that are corrupted, the being of which is interrupted altogether, since their form remains not, and their matter remains under another being.
Nevertheless neither does the self-same man recur by natural generation, because the body of the man begotten is not composed of the whole body of his begetter: hence his body is numerically distinct, and consequently his soul and the whole man.
Reply to Objection 2: There are two opinions about humanity and about any form of a whole. For some say that the form of the whole and the form of the part are really one and the same: but that it is called the form of the part inasmuch as it perfects the matter, and the form of the whole inasmuch as the whole specific nature results therefrom. According to this opinion humanity is really nothing else than the rational soul: and so, since the selfsame rational soul is resumed, there will be the same identical humanity, which will remain even after death, albeit not under the aspect of humanity, because the composite does not derive the specific nature from a separated humanity.
The other opinion, which seems nearer the truth, is Avicenna's, according to whom the form of the whole is not the form of a part only, nor some other form besides the form of the part, but is the whole resulting from the composition of form and matter, embracing both within itself. This form of the whole is called the essence or quiddity. Since then at the resurrection there will be the selfsame body, and the selfsame rational soul, there will be, of necessity, the same humanity.
The first argument proving that there will be a distinction of humanity was based on the supposition that humanity is some distinct form supervening form and matter; which is false.
The second reason does not disprove the identity of humanity, because union implies action or passion, and though there be a different union, this cannot prevent the identity of humanity, because the action and passion from which humanity resulted are not of the essence of humanity, wherefore a distinction on their part does not involve a distinction of humanity: for it is clear that generation and resurrection are not the self-same movement. Yet the identity of the rising man with the begotten man is not hindered for this reason: and in like manner neither is the identity of humanity prevented if we take union for the relation itself: because this relation is not essential to but concomitant with humanity, since humanity is not one of those forms that are composition or order (Phys. ii, 1), as are the forms of things produced by art, so that if there be another distinct composition there is another distinct form of a house.
Reply to Objection 3: This argument affords a very good proof against those who held a distinction between the sensitive and rational souls in man: because in that case the sensitive soul in man would not be incorruptible, as neither is it in other animals; and consequently in the resurrection there would not be the same sensitive soul, and consequently neither the same animal nor the same man.
But if we assert that in man the same soul is by its substance both rational and sensitive, we shall encounter no difficulty in this question, because animal is defined from sense, i.e. the sensitive soul as from its essential form: whereas from sense, i.e. the sensitive power, we know its definition as from an accidental form "that contributes more than another to our knowledge of the quiddity" (De Anima i, 1). Accordingly after death there remains the sensitive soul, even as the rational soul, according to its substance: whereas the sensitive powers, according to some, do not remain. And since these powers are accidental properties, diversity on their part cannot prevent the identity of the whole animal, not even of the animal's parts: nor are powers to be called perfections or acts of organs unless as principles of action, as heat in fire.
Reply to Objection 4: A statue may be considered in two ways, either as a particular substance, or as something artificial. And since it is placed in the genus of substance by reason of its matter, it follows that if we consider it as a particular substance, it is the selfsame statue that is remade from the same matter. On the other hand, it is placed in the genus of artificial things inasmuch as it has an accidental form which, if the statue be destroyed, passes away also. Consequently it does not return identically the same, nor can the statue be identically the same. But man's form, namely the soul, remains after the body has perished: wherefore the comparison fails.
Summa - Supplement 1544