Since God is vast, and the Architect of the world, and omnipotent, He created things that reach to immensity both by the Architect of the world and by an omnipotent will, and with a new effect, potently and efficaciously, in order that the entire fulness of those things which have been produced might come into being, although they had no previous existence—that is, whatever does not fall under [our] observation, and also what lies before our eyes. And so does He contain all things in particular, and leads them on to their own proper result, on account of which they were called into being and produced, in no way changed into anything else than what it (the end) had originally been by nature. For this is the property of the working of God, not merely to proceed to the infinitude of the understanding, or even to overpass [our] powers of mind, reason and speech, time and place, and every age; but also to go beyond substance, and fulness or perfection.
Reproduced in full. Translation: Ante-Nicene Fathers, vol. 1 (Roberts and Donaldson, 1885), public domain (Public domain).