SUMMA THEOLOGICA. Thomas Aquinas
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 to Objection 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 to Objection 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 to Objection 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."
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.
Objection 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 to Objection 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 to Objection 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.
Whether those who see the essence of God see all they see in it at the same time?
Objection 1: It seems that those who see the essence of God do not see all they see in Him at one and the same time. For according to the Philosopher (Topic. ii): "It may happen that many things are known, but only one is understood." But what is seen in God, is understood; for God is seen by the intellect. Therefore those who see God do not see all in Him at the same time.
Objection 2: Further, Augustine says (Gen. ad lit. viii, 22,23), "God moves the spiritual creature according to time"---i.e. by intelligence and affection. But the spiritual creature is the angel who sees God. Therefore those who see God understand and are affected successively; for time means succession.
On the contrary, Augustine says (De Trin. xvi): "Our thoughts will not be unstable, going to and fro from one thing to another; but we shall see all we know at one glance."
I answer that, What is seen in the Word is seen not successively, but at the same time. In proof whereof, we ourselves cannot know many things all at once, forasmuch as understand many things by means of many ideas. But our intellect cannot be actually informed by many diverse ideas at the same time, so as to understand by them; as one body cannot bear different shapes simultaneously. Hence, when many things can be understood by one idea, they are understood at the same time; as the parts of a whole are understood successively, and not all at the same time, if each one is understood by its own idea; whereas if all are understood under the one idea of the whole, they are understood simultaneously. Now it was shown above that things seen in God, are not seen singly by their own similitude; but all are seen by the one essence of God. Hence they are seen simultaneously, and not successively.
Reply to Objection 1: We understand one thing only when we understand by one idea; but many things understood by one idea are understood simultaneously, as in the idea of a man we understand "animal" and "rational"; and in the idea of a house we understand the wall and the roof.
Reply to Objection 2: As regards their natural knowledge, whereby they know things by diverse ideas given them, the angels do not know all things simultaneously, and thus they are moved in the act of understanding according to time; but as regards what they see in God, they see all at the same time.
Whether anyone in this life can see the essence of God?
Objection 1: It seems that one can in this life see the Divine essence. For Jacob said: "I have seen God face to face" (Gn. 32:30). But to see Him face to face is to see His essence, as appears from the words: "We see now in a glass and in a dark manner, but then face to face" (1 Cor. 13:12).
Objection 2: Further, the Lord said to Moses: "I speak