I don't see how a true beginning is possible. "Had to be a beginning" is an endless tail-chase. What did the beginning actually begin inside of? Or where? The only thing that does make sense is eternity.
Linear existence.
Science would have you believe all of this.....ALL of it....had a starting point.
Science will take you back to the beginning as far as a grain of sand.
That 'point' they call the singularity is physical for the scientist.
They can't deal with a 'point' that has no equation to it.
Without a point 'b'....numbers don't form.
Without a point 'b'...movement cannot be measured.
Much of the terminology of our reality simply disappears....back into the void.
I believe linear existence can be applied to Spirit as well.
Someone had to be First in mind and heart.
I simply place that Someone as existing before the 'bang'.
If substance first then all of life is subject to the chemistry...and terminal.
And we have no cause or purpose.
Man is then a mystery without resolve.