Hey Guys,
The catechism of the Catholic Church says that God “must be one.” My question is why must God be one? And what brings us to the conclusion that God is one?
Thanks, and God Bless!
**1. God’s revelation. **Since the times of Old Covenant Judaism, long before Jesus, God taught his people to drill the commandments into their children, to be certain that they never forgot what their God had asked of them. The very first of those commandments; the prime command of all the law, which every good Jew knows, to this day, by heart, is as follows.
“Hear, O Israel, the Lord our God is one Lord. Thou shalt love the Lord thy God with thy whole heart, and with thy whole soul, and with thy whole strength.”
Nuff said on that score. This truth is right at the dead center of all Christian and Judaic religion.
**2. Logic. **God is defined as having certain attributes, which make it impossible for there to be more than one of him. For example, being all-powerful. If there is more than one God, then which one has power over the others? If one of them has this power, then he is God and the others are not God. However, if none of them has this power, then none of them are God, and the real God must be found elsewhere.
However, in addition, the question must be raised, as Aristotle raised it; what is the First Cause of everything? There can’t be more than one First Cause, since one must precede the other. If they acted simultaneously, that makes them connected. So much so, in fact, that they might be viewed as united almost perfectly, and then we need to ask; doesn’t that sound like the trinity?
Since the concept of the trinity doesn’t threaten divine oneness, however, that’s not a good argument against it. The oneness of God is logically-sound, and logically-inescapable.