We’re using the book “Handbook of Apologetics” by Peter Kreeft and Ronald Tacelli to go over the arguments for the existence of God. We will now begin covering the attributes of God. Dr. Kreeft teaches logic in two major universities, so his arguments tend to be clear, concise and very helpful.
This week we’ll go over God is One:
If God is infinite, can there be many Gods? Obviously not. We have already seen that God must exist without limit. But if he is without limit, there cannot be more than one God. For if there were, there would have to be some difference between them, and this would involve nonbeing; the one could not be what or where the other was.
But if that were so, then neither one could be the limitless fullness of being. And this would mean that what we call “God” is not the ultimate answer to our question about finite being after all.
But if “God” is the answer to that question, then he must be the limitless fullness of being and cannot be limited by another God outside himself. So God must be one.
Kreeft, P., & Tacelli, R. K. (1994). Handbook of Christian apologetics: hundreds of answers to crucial questions (p. 92). Downers Grove, IL: InterVarsity Press.