IF you realize that some claims by Holy men in the past were not tenable on moral grounds, what is it that informs you of that if not a concept of what God should be to begin with??? Its my observation that Atheist do already have a generic conception of deity that they compare with the claims made by religion.
I can't speak for others, but that certainly does not apply to me.
I have no preconception at all about what a god should or shouldn't be.
Indeed, I have said many times that I see no reason why a god couldn't be an immoral douche.
At best, I'ld only use immoral god commandments as an argument against a god of which it is claimed that that god is the very embodiment of goodness and morality.
Like when a christian tells me that his god is all-loving and all-good, while the very scripture of that supposed god tells us this god both commanded and engaged in genocide and infanticide and also condones and regulates slavery. Those things are self-contradicting to the point where I can say that either that god doesn't exist, or his supposed scriptures are wrong.
Other then that, why should a god be moral?
I have no such preconception.
I'm perfectly fine with the idea of someone succeeding to prove his god exists while also having evidence to show this god is an immoral douche.
A god existing and that god being immoral by no means are mutually exclusive imo.
What if some experience did prove God, then what?
I don't see how an "experience" can prove such a thing.
But as I said above: if a god can be proven to exist and there is evidence this god is immoral, then I'll happily conclude that an immoral god exists.
Going forward you would still need to live by faith in the guidance of the spirit.
I don't do faith.
I consider faith immoral.