For this lesson I include just a couple brief snippets from the Summa Contra Gentiles. These brief passages will make sense to you after you watch the video. You’ll find them beneath the video.
ON THE DIVINE PERFECTION
Again, each thing is perfect according as it is in act, and imperfect according as it is in potency and lacking act. Hence, that which is in no way in potency, but is pure act, must be most perfect. Such, however, is God. God is, therefore, most perfect.
THAT GOD IS ONE
From what has been shown it is evident that God is one….
Again, it has been shown that God is absolutely perfect, lacking no perfection. If, then, there are many gods, there must be many such perfect beings. But this is impossible. For, if none of these perfect beings lacks some perfection, and does not have any admixture of imperfection, which is demanded for an absolutely perfect being, nothing will be given in which to distinguish the perfect beings from one another. It is impossible, therefore, that there be many gods.