Trying to validate god's existence. Obviously trying to validate that. If someone has a engineering degree, Brilliant. Kudos. But you don't exactly understand the universe, you can build a bridge or a dam. But they fail too. Like your logic.
GOD validates HIS own existence. The Bible begins:
In the beginning GOD... There is no explanation.
The bible has nothing to do with the beginning as the bible itself does not claim that it was written by God. The bible was written by human beings that existed no where near the beginning. Can you see this
"In the beginning when God created heaven and earth" refers to the the time when the law was first given as a light to the nations. A light that separated the world above from the world below by teaching people to distinguish between clean and unclean, right and wrong, true and false, good and evil, life and death.
The law is the firmament, basis, of Heaven.
Unless a person conforms to the instruction given in the law they can never enter the kingdom of Heaven.