Summa Theologica Part I (Prima Pars) Part 80

Reply Obj. 3: Although there is no composition of matter and form in an angel, yet there is act and potentiality. And this can be made evident if we consider the nature of material things which contain a twofold composition. The first is that of form and matter, whereby the nature is const.i.tuted. Such a composite nature is not its own existence but existence is its act. Hence the nature itself is related to its own existence as potentiality to act. Therefore if there be no matter, and supposing that the form itself subsists without matter, there nevertheless still remains the relation of the form to its very existence, as of potentiality to act. And such a kind of composition is understood to be in the angels; and this is what some say, that an angel is composed of, "whereby he is," and "what is," or "existence," and "what is," as Boethius says. For "what is," is the form itself subsisting; and the existence itself is whereby the substance is; as the running is whereby the runner runs.

But in G.o.d "existence" and "what is" are not different as was explained above (Q. 3, A. 4). Hence G.o.d alone is pure act.

Reply Obj. 4: Every creature is simply finite, inasmuch as its existence is not absolutely subsisting, but is limited to some nature to which it belongs. But there is nothing against a creature being considered relatively infinite. Material creatures are infinite on the part of matter, but finite in their form, which is limited by the matter which receives it. But immaterial created substances are finite in their being; whereas they are infinite in the sense that their forms are not received in anything else; as if we were to say, for example, that whiteness existing separate is infinite as regards the nature of whiteness, forasmuch as it is not contracted to any one subject; while its "being" is finite as determined to some one special nature.

Whence it is said (De Causis, prop. 16) that "intelligence is finite from above," as receiving its being from above itself, and is "infinite from below," as not received in any matter.

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THIRD ARTICLE [I, Q. 50, Art. 3]

Whether the Angels Exist in Any Great Number?

Objection 1: It would seem that the angels are not in great numbers.

For number is a species of quant.i.ty, and follows the division of a continuous body. But this cannot be in the angels, since they are incorporeal, as was shown above (A. 1). Therefore the angels cannot exist in any great number.

Obj. 2: Further, the more a thing approaches to unity, so much the less is it multiplied, as is evident in numbers. But among other created natures the angelic nature approaches nearest to G.o.d.

Therefore since G.o.d is supremely one, it seems that there is the least possible number in the angelic nature.

Obj. 3: Further, the proper effect of the separate substances seems to be the movements of the heavenly bodies. But the movements of the heavenly bodies fall within some small determined number, which we can apprehend. Therefore the angels are not in greater number than the movements of the heavenly bodies.

Obj. 4: Dionysius says (Div. Nom. iv) that "all intelligible and intellectual substances subsist because of the rays of the divine goodness." But a ray is only multiplied according to the different things that receive it. Now it cannot be said that their matter is receptive of an intelligible ray, since intellectual substances are immaterial, as was shown above (A. 2). Therefore it seems that the multiplication of intellectual substances can only be according to the requirements of the first bodies--that is, of the heavenly ones, so that in some way the shedding form of the aforesaid rays may be terminated in them; and hence the same conclusion is to be drawn as before.

_On the contrary,_ It is said (Dan. 7:10): "Thousands of thousands ministered to Him, and ten thousands times a hundred thousand stood before Him."

_I answer that,_ There have been various opinions with regard to the number of the separate substances. Plato contended that the separate substances are the species of sensible things; as if we were to maintain that human nature is a separate substance of itself: and according to this view it would have to be maintained that the number of the separate substances is the number of the species of sensible things. Aristotle, however, rejects this view (Metaph. i, text 31) because matter is of the very nature of the species of sensible things. Consequently the separate substances cannot be the exemplar species of these sensible things; but have their own fixed natures, which are higher than the natures of sensible things. Nevertheless Aristotle held (Metaph. xi, text 43) that those more perfect natures bear relation to these sensible things, as that of mover and end; and therefore he strove to find out the number of the separate substances according to the number of the first movements.

But since this appears to militate against the teachings of Sacred Scripture, Rabbi Moses the Jew, wis.h.i.+ng to bring both into harmony, held that the angels, in so far as they are styled immaterial substances, are multiplied according to the number of heavenly movements or bodies, as Aristotle held (Metaph. xi, text 43); while he contended that in the Scriptures even men bearing a divine message are styled angels; and again, even the powers of natural things, which manifest G.o.d's almighty power. It is, however, quite foreign to the custom of the Scriptures for the powers of irrational things to be designated as angels.

Hence it must be said that the angels, even inasmuch as they are immaterial substances, exist in exceeding great number, far beyond all material mult.i.tude. This is what Dionysius says (Coel. Hier. xiv): "There are many blessed armies of the heavenly intelligences, surpa.s.sing the weak and limited reckoning of our material numbers."

The reason whereof is this, because, since it is the perfection of the universe that G.o.d chiefly intends in the creation of things, the more perfect some things are, in so much greater an excess are they created by G.o.d. Now, as in bodies such excess is observed in regard to their magnitude, so in things incorporeal is it observed in regard to their mult.i.tude. We see, in fact, that incorruptible bodies, exceed corruptible bodies almost incomparably in magnitude; for the entire sphere of things active and pa.s.sive is something very small in comparison with the heavenly bodies. Hence it is reasonable to conclude that the immaterial substances as it were incomparably exceed material substances as to mult.i.tude.

Reply Obj. 1: In the angels number is not that of discrete quant.i.ty, brought about by division of what is continuous, but that which is caused by distinction of forms; according as mult.i.tude is reckoned among the transcendentals, as was said above (Q. 30, A. 3; Q. 11).

Reply Obj. 2: From the angelic nature being the nighest unto G.o.d, it must needs have least of mult.i.tude in its composition, but not so as to be found in few subjects.

Reply Obj. 3: This is Aristotle's argument (Metaph. xii, text 44), and it would conclude necessarily if the separate substances were made for corporeal substances. For thus the immaterial substances would exist to no purpose, unless some movement from them were to appear in corporeal things. But it is not true that the immaterial substances exist on account of the corporeal, because the end is n.o.bler than the means to the end. Hence Aristotle says (Metaph. xii, text 44) that this is not a necessary argument, but a probable one. He was forced to make use of this argument, since only through sensible things can we come to know intelligible ones.

Reply Obj. 4: This argument comes from the opinion of such as hold that matter is the cause of the distinction of things; but this was refuted above (Q. 47, A. 1). Accordingly, the multiplication of the angels is not to be taken according to matter, nor according to bodies, but according to the divine wisdom devising the various orders of immaterial substances.

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FOURTH ARTICLE [I, Q. 50, Art. 4]

Whether the Angels Differ in Species?

Objection 1: It would seem that the angels do not differ in species.

For since the "difference" is n.o.bler than the 'genus,' all things which agree in what is n.o.blest in them, agree likewise in their ultimate const.i.tutive difference; and so they are the same according to species. But all angels agree in what is n.o.blest in them--that is to say, in intellectuality. Therefore all the angels are of one species.

Obj. 2: Further, more and less do not change a species. But the angels seem to differ only from one another according to more and less--namely, as one is simpler than another, and of keener intellect. Therefore the angels do not differ specifically.

Obj. 3: Further, soul and angel are contra-distinguished mutually from each other. But all souls are of the one species. So therefore are the angels.

Obj. 4: Further, the more perfect a thing is in nature, the more ought it to be multiplied. But this would not be so if there were but one individual under one species. Therefore there are many angels of one species.

_On the contrary,_ In things of one species there is no such thing as "first" and "second" [prius et posterius], as the Philosopher says (Metaph. iii, text 2). But in the angels even of the one order there are first, middle, and last, as Dionysius says (Hier. Ang. x).

Therefore the angels are not of the same species.

_I answer that,_ Some have said that all spiritual substances, even souls, are of the one species. Others, again, that all the angels are of the one species, but not souls; while others allege that all the angels of one hierarchy, or even of one order, are of the one species.

But this is impossible. For such things as agree in species but differ in number, agree in form, but are distinguished materially. If, therefore, the angels be not composed of matter and form, as was said above (A. 2), it follows that it is impossible for two angels to be of one species; just as it would be impossible for there to be several whitenesses apart, or several humanities, since whitenesses are not several, except in so far as they are in several substances.

And if the angels had matter, not even then could there be several angels of one species. For it would be necessary for matter to be the principle of distinction of one from the other, not, indeed, according to the division of quant.i.ty, since they are incorporeal, but according to the diversity of their powers; and such diversity of matter causes diversity not merely of species, but of genus.

Reply Obj. 1: "Difference" is n.o.bler than genus, as the determined is more n.o.ble than the undetermined, and the proper than the common, but not as one nature is n.o.bler than another; otherwise it would be necessary that all irrational animals be of the same species; or that there should be in them some form which is higher than the sensible soul. Therefore irrational animals differ in species according to the various determined degrees of sensitive nature; and in like manner all the angels differ in species according to the diverse degrees of intellectual nature.

Reply Obj. 2: More and less change the species, not according as they are caused by the intensity or remissness of one form, but according as they are caused by forms of diverse degrees; for instance, if we say that fire is more perfect than air: and in this way the angels are diversified according to more or less.

Reply Obj. 3: The good of the species preponderates over the good of the individual. Hence it is much better for the species to be multiplied in the angels than for individuals to be multiplied in the one species.

Reply Obj. 4: Numerical multiplication, since it can be drawn out infinitely, is not intended by the agent, but only specific multiplication, as was said above (Q. 47, A. 3). Hence the perfection of the angelic nature calls for the multiplying of species, but not for the multiplying of individuals in one species.

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FIFTH ARTICLE [I, Q. 50, Art. 5]

Whether the Angels Are Incorruptible?

Objection 1: It would seem that the angels are not incorruptible; for Damascene, speaking of the angel, says (De Fide Orth. ii, 3) that he is "an intellectual substance, partaking of immortality by favor, and not by nature."

Obj. 2: Further, Plato says in the Timaeus: "O G.o.ds of G.o.ds, whose maker and father am I: You are indeed my works, dissoluble by nature, yet indissoluble because I so will it." But G.o.ds such as these can only be understood to be the angels. Therefore the angels are corruptible by their nature

Obj. 3: Further, according to Gregory (Moral. xvi), "all things would tend towards nothing, unless the hand of the Almighty preserved them." But what can be brought to nothing is corruptible. Therefore, since the angels were made by G.o.d, it would appear that they are corruptible of their own nature.

_On the contrary,_ Dionysius says (Div. Nom. iv) that the intellectual substances "have unfailing life, being free from all corruption, death, matter, and generation."

_I answer that,_ It must necessarily be maintained that the angels are incorruptible of their own nature. The reason for this is, that nothing is corrupted except by its form being separated from the matter. Hence, since an angel is a subsisting form, as is clear from what was said above (A. 2), it is impossible for its substance to be corruptible. For what belongs to anything considered in itself can never be separated from it; but what belongs to a thing, considered in relation to something else, can be separated, when that something else is taken away, in view of which it belonged to it. Roundness can never be taken from the circle, because it belongs to it of itself; but a bronze circle can lose roundness, if the bronze be deprived of its circular shape. Now to be belongs to a form considered in itself; for everything is an actual being according to its form: whereas matter is an actual being by the form. Consequently a subject composed of matter and form ceases to be actually when the form is separated from the matter. But if the form subsists in its own being, as happens in the angels, as was said above (A. 2), it cannot lose its being.

Therefore, the angel's immateriality is the cause why it is incorruptible by its own nature.

A token of this incorruptibility can be gathered from its intellectual operation; for since everything acts according as it is actual, the operation of a thing indicates its mode of being. Now the species and nature of the operation is understood from the object. But an intelligible object, being above time, is everlasting. Hence every intellectual substance is incorruptible of its own nature.

Reply Obj. 1: Damascene is dealing with perfect immortality, which includes complete immutability; since "every change is a kind of death," as Augustine says (Contra Maxim. iii). The angels obtain perfect immutability only by favor, as will appear later (Q. 62).

Reply Obj. 2: By the expression 'G.o.ds' Plato understands the heavenly bodies, which he supposed to be made up of elements, and therefore dissoluble of their own nature; yet they are for ever preserved in existence by the Divine will.

Reply Obj. 3: As was observed above (Q. 44, A. 1) there is a kind of necessary thing which has a cause of its necessity. Hence it is not repugnant to a necessary or incorruptible being to depend for its existence on another as its cause. Therefore, when it is said that all things, even the angels, would lapse into nothing, unless preserved by G.o.d, it is not to be gathered therefrom that there is any principle of corruption in the angels; but that the nature of the angels is dependent upon G.o.d as its cause. For a thing is said to be corruptible not merely because G.o.d can reduce it to non-existence, by withdrawing His act of preservation; but also because it has some principle of corruption within itself, or some contrariety, or at least the potentiality of matter.

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QUESTION 51

OF THE ANGELS IN COMPARISON WITH BODIES (In Three Articles)

We next inquire about the angels in comparison with corporeal things; and in the first place about their comparison with bodies; secondly, of the angels in comparison with corporeal places; and, thirdly, of their comparison with local movement.