"Maimonides postulated that you can't say anything definite about God"
God is just an undefined word in human language, it is a composite of a human being + magic. That's all god is, it is the ultimate 'tribal leader' it is imaginary and hence natural. It derives itself from the natural world (human psyche + magic). This is why ancient gods all have human qualities. So yes you can definitely say definite things about the "gods" of the past, since all words are derived and composed from the natural world. The problem you have is that you don't know enough science about how the language systems in the brain work and how it composes statements. Consider a Unicorn, technically "unicorns don't exist" but that statement is in fact meaningless because the Unicorn DOES exist, it is a composite of the concept of horse (drawn from the natural world) plus horn (aka a horn shape, idea drawn from the natural world of other animals).
So unicorns *do exist* in the sense that natural idea horse + natural idea (gemetric relation pointy edged shape called horn) = unicorn.
The way you naturally think in language obscures the reality of how concepts are conceived in language, if we go back to the original human being who first coined the concept of god we can put our modern selves in his place and see how he is deriving the concept from the natural world, first deriving it from his own psyche + the unknown (aka non scientific world, so he just plugs in "magic").
The problem is most people don't know that their brain is a simulation, it is a mere representational space created by unconscious processes they don't understand. So the mind REALLY doesn't live in reality to a large extent. Most people are not fit or educated enough to understand themselves or much of their worldview.
Check out the science:
https://www.youtube.com/watch?...