(For my MCCC Philosophy of Religion students.)
W.L. Craig establishes that our universe has a cause. And, that whatever caused our universe to exist is atemporal (timeless).
So, we have as the universe's cause either a timeless personal agent, or a timeless impersonal cause.
By inference to the best explanation Craig believes "timeless personal agent" is correct. Here is one way he reasons about this.
1. The cause of the universe is timeless and immaterial.
2. The only timeless, immaterial objects we know of are either minds or abstract objects.
3. Abstract objects do not stand in causal relations.
4. Therefore the cause of the universe is a timeless, immaterial mind (personal agent).
(Note: this explanation is different from the one I gave in class today.)
For W.L.C. on this see: