Fourth Argument.—This is likewise a well-known philosophical argument. We constantly see things passing from a state of potentiality to that of actuality, but in every such case there is for that transition of a thing an agent separate from it (Prop. XVIII.). It is likewise clear that the agent has also passed from potentiality to actuality. It has at first been potential, because it could not be actual, owing to some obstacle contained in itself, or on account of the absence of a certain relation between itself and the object of its action; it became an actual agent as soon as that relation was present. Whichever cause be assumed, an agent is again necessary to remove the obstacle or to create the relation. The same can be argued respecting this last-mentioned agent that creates the relation or removes the obstacle. This series of causes cannot go on ad infinitum; we must at last arrive at a cause of the transition of an object from the state of potentiality to that of actuality, which is constant, and admits of no potentiality whatever. In the essence of this cause nothing exists potentially, for if its essence included any possibility of existence it would not exist at all (Prop. XXIII.); it cannot be corporeal, but it must be spiritual (Prop. XXIV.); and the immaterial being that includes no possibility whatever, but exists actually by its own essence, is God. Since He is incorporeal, as has been demonstrated, it follows that He is One (Prop. XVI.).
Even if we were to admit the Eternity of the Universe, we could by any of these methods prove the existence of God; that He is One and incorporeal, and that He does not reside as a force in a corporeal object.
The following is likewise a correct method to prove the Incorporeality and the Unity of God: If there were two Gods, they would necessarily have one element in common by virtue of which they were Gods, and another element by which they were distinguished from each other and existed as two Gods; the distinguishing element would either be in both different from the property common to both—in that case both of them would consist of different elements, and neither of them would be the First Cause, or have absolutely independent existence; but their existence would depend on certain causes (Prop. XIX.)—or the distinguishing element would only in one of them be different from the element common to both: then that being could not have absolute independence.
Another proof of the Unity of God.—It has been demonstrated by proof that the whole existing world is one organic body, all parts of which are connected together; also, that the influences of the spheres above pervade the earthly substance and prepare it for its forms. Hence it is impossible to assume that one deity be engaged in forming one part, and another deity in forming another part of that organic body of which all parts are closely connected together. A duality could only be imagined in this way, either that at one time the one deity is active, the other at another time, or that both act simultaneously, nothing being done except by both together. The first alternative is certainly absurd for many reasons; if at the time the one deity be active the other could also be active, there is no reason why the one deity should then act and the other not; if, on the other hand, it be impossible for the one deity to act when the other is at work, there must be [[154]]some other cause [besides these deities] which [at a certain time] enables the one to act and disables the other. [Such difference would not be caused by time], since time is without change, and the object of the action likewise remains one and the same organic whole. Besides, if two deities existed in this way, both would be subject to the relations of time, since their actions would depend on time; they would also in the moment of acting pass from potentiality to actuality, and require an agent for such transition; their essence would besides include possibility [of existence]. It is equally absurd to assume that both together produce everything in existence, and that neither of them does anything alone; for when a number of forces must be united for a certain result, none of these forces acts of its own accord, and none is by itself the immediate cause of that result, but their union is the immediate cause. It has, furthermore, been proved that the action of the absolute cannot be due to an [external] cause. The union is also an act which presupposes a cause effecting that union, and if that cause be one, it is undoubtedly God; but if it also consists of a number of separate forces, a cause is required for the combination of these forces, as in the first case. Finally, one simple being must be arrived at, that is the cause of the existence of the Universe, which is one whole; it would make no difference whether we assumed that the First Cause had produced the Universe by creatio ex nihilo, or whether the Universe co-existed with the First Cause. It is thus clear how we can prove the Unity of God from the fact that this Universe is one whole.
Another argument concerning the Incorporeality of God.—Every corporeal object is composed of matter and form (Prop. XXII.); every compound of these two elements requires an agent for effecting their combination. Besides, it is evident that a body is divisible and has dimensions; a body is thus undoubtedly subject to accidents. Consequently nothing corporeal can be a unity, either because everything corporeal is divisible or because it is a compound; that is to say, it can logically be analysed into two elements; because a body can only be said to be a certain body when the distinguishing element is added to the corporeal substratum, and must therefore include two elements; but it has been proved that the Absolute admits of no dualism whatever.
Now that we have discussed these proofs, we will expound our own method in accordance with our promise.
CHAPTER II
The fifth essence, i.e., the heavenly spheres, must either be transient, and in this case motion would likewise be temporary, or, as our opponent assumes, it must be eternal. If the spheres are transient, then God is their Creator; for if anything comes into existence after a period of non-existence, it is self-evident that an agent exists which has effected this result. It would be absurd to contend that the thing itself effected it. If, on the other hand, the heavenly spheres be eternal, with a regular perpetual motion, the cause of this perpetual motion, according to the Propositions enumerated in the Introduction, must be something that is neither a body, nor a force residing in a body, and that is God, praised be His name! We have thus shown that [[155]]whether we believe in the Creatio ex Nihilo, or in the Eternity of the Universe, we can prove by demonstrative arguments the existence of God, i.e., an absolute Being, whose existence cannot be attributed to any cause, or admit in itself any potentiality. The theory that God is One and Incorporeal has likewise been established by proof without any reference to the theory of the Creation or the Eternity of the Universe. This has been explained by us in the third philosophical argument [in support of the Existence of God], and also in our subsequent description of the methods of the philosophers in proving the Incorporeality and the Unity of God.
We deem it now convenient to continue with the theory of the philosophers, and to give their proofs for the existence of Intelligences. We will then show that their theory in this regard is in harmony with the teaching of Scripture concerning the existence of angels. After the full treatment of this subject we shall return to our task and discuss the theory of creatio ex nihilo. For the best arguments in favour of this theory cannot be fully comprehended unless the theory of the existence of Intelligences be well understood, and also the method which I adopt in proving their existence. We must, however, first give the following note, which will introduce you into the secrets of this whole subject, both of that which we have already given and of what will yet be given.