None of this refutes what I am saying....there is no direct observation of a big bang...only the idea.. There has never been a state of the absence of existence...and never will be...the universe is infinite and eternal. why? Because it could be any other way....nothing does not exist and never has!
Btw, as a pantheist, where do you imagine God was before the big bang?
That's the thing, God don't enter the picture in science, because science doesn't speculate on what is not there.
You are making baseless assumption for there being a deity, involving mere superstition.
You have no evidences that God exist before primitive men invented deities, because they see nature, but not being to explain how nature exist, so they imagined some spirits are behind every trees, streams, mountains, sun, moon, clouds, fire, etc; these are just superstitions.
Even in Jesus' time, they thought physical illnesses and mental illnesses (madnesses) were the result of evil spirits (eg the paranoia of King Saul in 1 Samuel, is an example of imaginary storytelling of evil spirit sent by God and inflicted the King with jealous paranoia and madness) or God being wrathful on individuals, and that cures or healing occurred through miracles of Jesus (or his disciples) by merely touching them, healing the insanes through exorcism of demons. That's pure superstition and wishful fancies.
Science have managed to explain many things about nature, and that doesn't involve any god. Science and medicine, and even social science (eg psychology) are able to explained what mental illnesses without the need of superstitions of god or evil spirits (demons, jinns, fairies).
During the Second Temple period, astronomy involved angels moving the sun, moon, stars and planets in the sky. By the time of Copernicus, Galileo, Kepler and Newton, science gradually began peeling away superstitious nonsense of God and angels causing movements of these celestial bodies in the sky.
It is only when scientists began creating large observatories and radio telescopes that we began to realise that our world is a lot smaller, and we could observe more distant stars and galaxies. The concept of the universe is very modern.
Even as late as 18th century, frightened believers still viewed the solar eclipses as signs of ill-omen.
And because of people like you, the needs for superstitions is still pretty much alive today. You still need superstition (eg God) to be the answer to your question about the universe, even there are no evidences to support God ever existing, let alone the sad superstition of God created everything.
God existing before the Big Bang or God creating the universe??? Only in your superstitious fantasy or delusion.