We are looking for a complete, coherent, and simple understanding of reality. Given what we know about the universe, there seems to be no reason to invoke God as part of this description.

Nothing in the fact that there was a first moment in time necessitates that an external something is required to bring the universe about at that moment.

The speed of time is 1 hour per hour, no matter what else is going on in the universe.

We are looking for a complete, coherent, and simple understanding of reality. Given what we know about the universe, there seems to be no reason to invoke God as part of this description.

We are not significant on the cosmic scale.

There's no verbs before time itself exists, right? There's no popping into existence, there's no fluctuating, there's no quantum mechanical craziness, there is literally nothing.

God is not described in equations.