Belief is a broad subject in its usage, referring to the subject of this thread "as an acceptance/denial of existence of GOD", to believe one must have already known the concept of "GOD" (past knowledge based). So to reach/find the concept/belief (that is to follow/believe in GOD) it must be static (because if its dynamic one can never reach it).
so belief is PAST BASED and STATIC. On the other hand Truth is not past based and its not static (it moves with the moment). To most Truth is GOD and vice versa, but to really seek the Truth and to know it one must have a clear mind which doesn't involve any past or future knowledge.
lastly, one can never be conclusive about belief (its only possible to convince oneself) because one is watching through a small hole and presume to be watching the whole/totality (which is the Truth). YOU CAN'T BE CONCLUSIVE ABOUT THE POSSIBLITY OF GOD EXISTANCE.
Surely if you really want to take it far and philosophical, you can't be conclusive about absolutely anything, not even about not being conclusive about absolutely anything.
This is not helpful at all.
I used to think the world of abstract ideas, such a mathematics, was exempt from this tyranny of not being conclusive, and then I read Kurt Godel and his incompleteness theorems, and found out that even mathematics is subject to this issue, per Godel.
One can prove a triangle has 180 degrees, but if you go further, the foundations if that proof are fiat Euclidian postulates.
In physics, there is an even deeper argument that, reality as a non relative entity does not exist. Einstein's Relativity points to this. Heisenberg's Uncertainty Principle points to this. The famous double slit experiment pounts to this.
So, my conclusion is, context is everything. The world can be explained much better in terms of probability than certainty. This is why even weather prediction is done in terms if percentage of chance of rain etc.
Say I am an engineer. I want to build a bridge that can carry a 40 ton lorry. I can build this bridge by using a pi value with only 5 decimal places, but pi in decimal does not end. So, should the engineer stop building the bridge because the true value if pi in decimal cannot be computed? No, if the pi value in decimal up to 5 decimal plaves is sufficient to build the needed bridge, that us pi in that context, even as we know the true value of pi is more complex.
What is my point?
The "you can't be conclusive" bandwagon will leave you in analysis paralysis. We have to be conclusive, albeit with nuance, context, probability, nargin of error, etc.
And in that context, we can say this.
We have two contexts. The logical and the non/extra logical.
From a logical context, God (omnipotent, omniscient, all benevolent, creator of all) does not exist, because we can show contradictions in the concept if existence of that God, essentially proof by cintradictiin that that God does not exist. The problem of evil/Epicurean Paradox shiws that ckearly.
From a non/ extra logical context, God can not exist either, because the mere proposition "God exists" is a logical proposition. The mere concept of existence is a logical concept.
So, either way, God does not exist.