Several religions and belief systems hold humans to be God. We can know this is not the case for the following reasons:
- God is the first cause of all that is, what Aquinas described as the first mover, the unmoved mover. A first cause is required because an infinite string of causes is most absurd, since 1) no one can traverse an infinite, and we are at the end of all moments that came before this one, and 2) the current sustaining of everything we observe and experience requires an ongoing cause, and that cause cannot require a cause or else we are stuck in an infinite series with every item in the series needing something else to support it. If everything needed something else to support it, nothing would be supporting. As Aquinas pointed out, if a stone is moved by a stick held in the hand, there must be something stationary that is generating the movement, or else the stone would not move. Thus there is a first cause of all there is.
- The first cause must be uncreated, for everything created needs a cause, which we eliminated above. All things created are finite, having a beginning.
- God is therefore uncreated and infinite. Infinite beings do not grow or increase, for then they would not have been infinite prior to the growth.
- We, however, have a beginning, grow, and learn. Since we are finite beings, we are not God.
- Religions that hold that we are God do not have a sufficient explanation for why we must learn we are God. If we were indeed God, it is unreasonable that we would forget we are God and have to learn it. The same is true for other human attributes, such as sin, love, and wisdom.