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

On the contrary, The idea in the intellect is the likeness of what is in the thing as is said in Peri Herm. i. But the word "animal" applied to a true animal, and to a picture of one, is equivocal. Therefore this name "God" applied to the true God and to God in opinion is applied equivocally.

Further, No one can signify what he does not know. But the heathen does not know the divine nature. So when he says an idol is God, he does not signify the true Deity. On the other hand, a Catholic signifies the true Deity when he says that there is one God. Therefore this name "God" is not applied univocally, but equivocally to the true God, and to God according to opinion.

I answer that, This name "God" in the three aforesaid significations is taken neither univocally nor equivocally, but analogically. This is apparent from this reason: Univocal terms mean absolutely the same thing, but equivocal terms absolutely different; whereas in analogical terms a word taken in one signification must be placed in the definition of the same word taken in other senses; as, for instance, "being" which is applied to "substance" is placed in the definition of being as applied to "accident"; and "healthy" applied to animal is placed in the definition of healthy as applied to urine and medicine. For urine is the sign of health in the animal, and medicine is the cause of health.

The same applies to the question at issue. For this name "God," as signifying the true God, includes the idea of God when it is used to denote God in opinion, or participation. For when we name anyone god by participation, we understand by the name of god some likeness of the true God. Likewise, when we call an idol god, by this name god we understand and signify something which men think is God; thus it is manifest that the name has different meanings, but that one of them is comprised in the other significations. Hence it is manifestly said analogically.

Reply Obj. 1: The multiplication of names does not depend on the predication of the name, but on the signification: for this name "man," of whomsoever it is predicated, whether truly or falsely, is predicated in one sense. But it would be multiplied if by the name "man" we meant to signify different things; for instance, if one meant to signify by this name "man" what man really is, and another meant to signify by the same name a stone, or something else. Hence it is evident that a Catholic saying that an idol is not God contradicts the pagan asserting that it is God; because each of them uses this name "God" to signify the true God. For when the pagan says an idol is God, he does not use this name as meaning God in opinion, for he would then speak the truth, as also Catholics sometimes use the name in that sense, as in the Psalm, "All the gods of the Gentiles are demons" (Ps. 95:5).

The same remark applies to the Second and Third Objections. For these reasons proceed from the different predication of the name, and not from its various significations.

Reply Obj. 4 ["On the contrary," par. 1]: The term "animal" applied to a true and a pictured animal is not purely equivocal; for the Philosopher takes equivocal names in a large sense, including analogous names; because also being, which is predicated analogically, is sometimes said to be predicated equivocally of different predicaments.

Reply Obj. 5 ["On the contrary," par. 2] : Neither a Catholic nor a pagan knows the very nature of God as it is in itself; but each one knows it according to some idea of causality, or excellence, or remotion (Q. 12, A. 12). So a pagan can take this name "God" in the same way when he says an idol is God, as the Catholic does in saying an idol is not God. But if anyone should be quite ignorant of God altogether, he could not even name Him, unless, perhaps, as we use names the meaning of which we know not. _______________________

ELEVENTH ARTICLE [I, Q. 13, Art. 11]

Whether This Name, HE WHO IS, Is the Most Proper Name of God?

Objection 1: It seems that this name HE WHO IS is not the most proper name of God. For this name "God" is an incommunicable name. But this name HE WHO IS, is not an incommunicable name. Therefore this name HE WHO IS is not the most proper name of God.

Obj. 2: Further, Dionysius says (Div. Nom. iii) that "the name of good excellently manifests all the processions of God." But it especially belongs to God to be the universal principle of all things. Therefore this name "good" is supremely proper to God, and not this name HE WHO IS.

Obj. 3: Further, every divine name seems to imply relation to creatures, for God is known to us only through creatures. But this name HE WHO IS imports no relation to creatures. Therefore this name HE WHO IS is not the most applicable to God.

On the contrary, It is written that when Moses asked, "If they should say to me, What is His name? what shall I say to them?" The Lord answered him, "Thus shalt thou say to them, HE WHO IS hath sent me to you" (Ex. 3:13, 14). Therefore this name HE WHO IS most properly belongs to God.

I answer that, This name HE WHO IS is most properly applied to God, for three reasons:

First, because of its signification. For it does not signify form, but simply existence itself. Hence since the existence of God is His essence itself, which can be said of no other (Q. 3, A. 4), it is clear that among other names this one specially denominates God, for everything is denominated by its form.

Secondly, on account of its universality. For all other names are either less universal, or, if convertible with it, add something above it at least in idea; hence in a certain way they inform and determine it. Now our intellect cannot know the essence of God itself in this life, as it is in itself, but whatever mode it applies in determining what it understands about God, it falls short of the mode of what God is in Himself. Therefore the less determinate the names are, and the more universal and absolute they are, the more properly they are applied to God. Hence Damascene says (De Fide Orth. i) that, "HE WHO IS, is the principal of all names applied to God; for comprehending all in itself, it contains existence itself as an infinite and indeterminate sea of substance." Now by any other name some mode of substance is determined, whereas this name HE WHO IS, determines no mode of being, but is indeterminate to all; and therefore it denominates the "infinite ocean of substance."

Thirdly, from its consignification, for it signifies present existence; and this above all properly applies to God, whose existence knows not past or future, as Augustine says (De Trin. v).

Reply Obj. 1: This name HE WHO IS is the name of God more properly than this name "God," as regards its source, namely, existence; and as regards the mode of signification and consignification, as said above. But as regards the object intended by the name, this name "God" is more proper, as it is imposed to signify the divine nature; and still more proper is the Tetragrammaton, imposed to signify the substance of God itself, incommunicable and, if one may so speak, singular.

Reply Obj. 2: This name "good" is the principal name of God in so far as He is a cause, but not absolutely; for existence considered absolutely comes before the idea of cause.

Reply Obj. 3: It is not necessary that all the divine names should import relation to creatures, but it suffices that they be imposed from some perfections flowing from God to creatures. Among these the first is existence, from which comes this name, HE WHO IS. _______________________

TWELFTH ARTICLE [I, Q. 13, Art. 12]

Whether Affirmative Propositions Can Be Formed About God?

Objection 1: It seems that affirmative propositions cannot be formed about God. For Dionysius says (Coel. Hier. ii) that "negations about God are true; but affirmations are vague."