On the World
4 If now, in the course of our discussion, it has been ascertained that these things are so, it seems to follow that we next consider the nature of corporeal being, seeing the diversity in the world cannot exist without bodies. It is evident from the nature of things themselves, that bodily nature admits of diversity and variety of change, so that it is capable of undergoing all possible transformations, as, e.g., the conversion of wood into fire, of fire into smoke, of smoke into air, of oil into fire. Does not food itself, whether of man or of animals, exhibit the same ground of change? For whatever we take as food, is converted into the substance of our body. But how water is changed into earth or into air, and air again into fire, or fire into air, or air into water, although not difficult to explain, yet on the present occasion it is enough merely to mention them, as our object is to discuss the nature of bodily matter. By matter, therefore, we understand that which is placed under bodies, viz., that by which, through the bestowing and implanting of qualities, bodies exist; and we mention four qualities— heat, cold, dryness, humidity. These four qualities being implanted in the ὕλη, or matter (for matter is found to exist in its own nature without those qualities before mentioned), produce the different kinds of bodies. Although this matter is, as we have said above, according to its own proper nature without qualities, it is never found to exist without a quality. And I cannot understand how so many distinguished men have been of opinion that this matter, which is so great, and possesses such properties as to enable it to be sufficient for all the bodies in the world which God willed to exist, and to be the attendant and slave of the Creator for whatever forms and species He wished in all things, receiving into itself whatever qualities He desired to bestow upon it, was uncreated, i.e., not formed by God Himself, who is the Creator of all things, but that its nature and power were the result of chance. And I am astonished that they should find fault with those who deny either God's creative power or His providential administration of the world, and accuse them of impiety for thinking that so great a work as the world could exist without an architect or overseer; while they themselves incur a similar charge of impiety in saying that matter is uncreated, and co-eternal with the uncreated God. According to this view, then, if we suppose for the sake of argument that matter did not exist, as these maintain, saying that God could not create anything when nothing existed, without doubt He would have been idle, not having matter on which to operate, which matter they say was furnished Him not by His own arrangement, but by accident; and they think that this, which was discovered by chance, was able to suffice Him for an undertaking of so vast an extent, and for the manifestation of the power of His might, and by admitting the plan of all His wisdom, might be distinguished and formed into a world. Now this appears to me to be very absurd, and to be the opinion of those men who are altogether ignorant of the power and intelligence of uncreated nature. But that we may see the nature of things a little more clearly, let it be granted that for a little time matter did not exist, and that God, when nothing formerly existed, caused those things to come into existence which He desired, why are we to suppose that God would create matter either better or greater, or of another kind, than that which He did produce from His own power and wisdom, in order that that might exist which formerly did not? Would He create a worse and inferior matter, or one the same as that which they call uncreated? Now I think it will very easily appear to any one, that neither a better nor inferior matter could have assumed the forms and species of the world, if it had not been such as that which actually did assume them. And does it not then seem impious to call that uncreated, which, if believed to be formed by God, would doubtless be found to be such as that which they call uncreated?
5. But that we may believe in the authority of holy Scripture that such is the case, hear how in the book of Maccabees, where the mother of seven martyrs exhorts her son to endure torture, this truth is confirmed; for she says, “I ask of you, my son, to look at the heaven and the earth, and at all things which are in them, and beholding these, to know that God made all these things when they did not exist.” In the book of the Shepherd also, in the first commandment, he speaks as follows: “First of all believe that there is one God who created and arranged all things, and made all things to come into existence, and out of a state of nothingness.” Perhaps also the expression in the Psalms has reference to this: “He spoke, and they were made; He commanded, and they were created.” For the words, “He spoke, and they were made,” appear to show that the substance of those things which exist is meant; while the others, “He commanded, and they were created,” seem spoken of the qualities by which the substance itself has been moulded.
Source: De Principiis (New Advent)