Thomas Aquinas - Summa Theologica, Part I (Prima Pars)

Objection 1: It seems that those who see the essence of God see all things in God. For Gregory says (Dialog. iv): "What do they not see, who see Him Who sees all things?" But God sees all things. Therefore those who see God see all things.

Obj. 2: Further, whoever sees a mirror, sees what is reflected in the mirror. But all actual or possible things shine forth in God as in a mirror; for He knows all things in Himself. Therefore whoever sees God, sees all actual things in Him, and also all possible things.

Obj. 3: Further, whoever understands the greater, can understand the least, as is said in De Anima iii. But all that God does, or can do, are less than His essence. Therefore whoever understands God, can understand all that God does, or can do.

Obj. 4: Further, the rational creature naturally desires to know all things. Therefore if in seeing God it does not know all things, its natural desire will not rest satisfied; thus, in seeing God it will not be fully happy; which is incongruous. Therefore he who sees God knows all things.

On the contrary, The angels see the essence of God; and yet do not know all things. For as Dionysius says (Coel. Hier. vii), "the inferior angels are cleansed from ignorance by the superior angels." Also they are ignorant of future contingent things, and of secret thoughts; for this knowledge belongs to God alone. Therefore whosoever sees the essence of God, does not know all things.

I answer that, The created intellect, in seeing the divine essence, does not see in it all that God does or can do. For it is manifest that things are seen in God as they are in Him. But all other things are in God as effects are in the power of their cause. Therefore all things are seen in God as an effect is seen in its cause. Now it is clear that the more perfectly a cause is seen, the more of its effects can be seen in it. For whoever has a lofty understanding, as soon as one demonstrative principle is put before him can gather the knowledge of many conclusions; but this is beyond one of a weaker intellect, for he needs things to be explained to him separately. And so an intellect can know all the effects of a cause and the reasons for those effects in the cause itself, if it comprehends the cause wholly. Now no created intellect can comprehend God wholly, as shown above (A. 7). Therefore no created intellect in seeing God can know all that God does or can do, for this would be to comprehend His power; but of what God does or can do any intellect can know the more, the more perfectly it sees God.

Reply Obj. 1: Gregory speaks as regards the object being sufficient, namely, God, who in Himself sufficiently contains and shows forth all things; but it does not follow that whoever sees God knows all things, for he does not perfectly comprehend Him.

Reply Obj. 2: It is not necessary that whoever sees a mirror should see all that is in the mirror, unless his glance comprehends the mirror itself.

Reply Obj. 3: Although it is more to see God than to see all things else, still it is a greater thing to see Him so that all things are known in Him, than to see Him in such a way that not all things, but the fewer or the more, are known in Him. For it has been shown in this article that the more things are known in God according as He is seen more or less perfectly.

Reply Obj. 4: The natural desire of the rational creature is to know everything that belongs to the perfection of the intellect, namely, the species and the genera of things and their types, and these everyone who sees the Divine essence will see in God. But to know other singulars, their thoughts and their deeds does not belong to the perfection of the created intellect nor does its natural desire go out to these things; neither, again, does it desire to know things that exist not as yet, but which God can call into being. Yet if God alone were seen, Who is the fount and principle of all being and of all truth, He would so fill the natural desire of knowledge that nothing else would be desired, and the seer would be completely beatified. Hence Augustine says (Confess. v): "Unhappy the man who knoweth all these" (i.e. all creatures) "and knoweth not Thee! but happy whoso knoweth Thee although he know not these. And whoso knoweth both Thee and them is not the happier for them, but for Thee alone." _______________________

NINTH ARTICLE [I, Q. 12, Art. 9]

Whether What Is Seen in God by Those Who See the Divine Essence, Is Seen

Through Any Similitude?

Objection 1: It seems that what is seen in God by those who see the Divine essence, is seen by means of some similitude. For every kind of knowledge comes about by the knower being assimilated to the object known. For thus the intellect in act becomes the actual intelligible, and the sense in act becomes the actual sensible, inasmuch as it is informed by a similitude of the object, as the eye by the similitude of color. Therefore if the intellect of one who sees the Divine essence understands any creatures in God, it must be informed by their similitudes.

Obj. 2: Further, what we have seen, we keep in memory. But Paul, seeing the essence of God whilst in ecstasy, when he had ceased to see the Divine essence, as Augustine says (Gen. ad lit. ii, 28,34), remembered many of the things he had seen in the rapture; hence he said: "I have heard secret words which it is not granted to man to utter" (2 Cor. 12:4). Therefore it must be said that certain similitudes of what he remembered, remained in his mind; and in the same way, when he actually saw the essence of God, he had certain similitudes or ideas of what he actually saw in it.

On the contrary, A mirror and what is in it are seen by means of one likeness. But all things are seen in God as in an intelligible mirror. Therefore if God Himself is not seen by any similitude but by His own essence, neither are the things seen in Him seen by any similitudes or ideas.

I answer that, Those who see the divine essence see what they see in God not by any likeness, but by the divine essence itself united to their intellect. For each thing is known in so far as its likeness is in the one who knows. Now this takes place in two ways. For as things which are like one and the same thing are like to each other, the cognitive faculty can be assimilated to any knowable object in two ways. In one way it is assimilated by the object itself, when it is directly informed by a similitude, and then the object is known in itself. In another way when informed by a similitude which resembles the object; and in this way, the knowledge is not of the thing in itself, but of the thing in its likeness. For the knowledge of a man in himself differs from the knowledge of him in his image. Hence to know things thus by their likeness in the one who knows, is to know them in themselves or in their own nature; whereas to know them by their similitudes pre-existing in God, is to see them in God. Now there is a difference between these two kinds of knowledge. Hence, according to the knowledge whereby things are known by those who see the essence of God, they are seen in God Himself not by any other similitudes but by the Divine essence alone present to the intellect; by which also God Himself is seen.

Reply Obj. 1: The created intellect of one who sees God is assimilated to what is seen in God, inasmuch as it is united to the Divine essence, in which the similitudes of all things pre-exist.

Reply Obj. 2: Some of the cognitive faculties form other images from those first conceived; thus the imagination from the preconceived images of a mountain and of gold can form the likeness of a golden mountain; and the intellect, from the preconceived ideas of genus and difference, forms the idea of species; in like manner from the similitude of an image we can form in our minds the similitude of the original of the image. Thus Paul, or any other person who sees God, by the very vision of the divine essence, can form in himself the similitudes of what is seen in the divine essence, which remained in Paul even when he had ceased to see the essence of God. Still this kind of vision whereby things are seen by this likeness thus conceived, is not the same as that whereby things are seen in God. _______________________