I will be the first to admit, I have no idea how the universe came into existence. There are theories, and there is some evidence to support some theories but the jury is still out and will be for a long time.

We do not know for sure if the universe is finite or infinite. We do not know if the universe is eternal or cyclic.

Was it once scattered across a trillion light years only to collapse upon itself due to gravitational forces until it became so dense it exploded again? Does it collapse again every few quadrillion years?

Did the Universe spring into being from nothing in the big bang? And will it continue to expand until every solar system dies in eternal absolute zero?

Or is the universe a case of "always was", "is now", "always will be"?

I do not know the answers to these questions? And I have no problem in not knowing. Someday man will discover the answers, if the species survives that long.

But if some can believe God is eternal and omniscient, how it it any more unreasonable to believe the universe is eternal?

People who choose to brew up their own storms bitch loudest about the rain.