Hobart Bliggity Posted:

The Universe, since it exists, must have a beginning.

Unsupported bumertion. Rejected as such.

Hobart Bliggity Posted:

Now, for existence apart from the universe. No, “existence” in our frame of reference is limited to the universe.

Then explain existence apart from the universe.

Hobart Bliggity Posted:

However, since the universe necessarily has an origin

No. Necessarily, it didn’t. Necessarily, it can’t.

Oh, and if god was within the universe, how could god create the universe? The universe would have already been there in the first place.