There's not much discussion here on the matter, anyway I'll spit out my ideas.
I
believe, or rather I know that god exists, based on a very simple fact;
The human is nothing more than what already it is, in other words
you're a limited being. If I ask you to imagine a non-existent color; a
new color, you wouldn't be able to, all your attempts will be completely
limited by all the colors that already exist, even if you bring up a
new name, the color itself already exists on the spectrum, it's already
there in the universe. All of this means you cannot imagine anything
outside the universe, anything that doesn't already exist; everything
you can imagine already exists, or partially exists as parts. Which begs
the next idea; what if I said I can imagine a planet made of gum?
You'll be correct, you can imagine a planet made of gum, but the clue
here is that what you imagined here already exists; a planet and a gum,
all you had to do is relate the two things, and you got a new "thing",
still you're unable to make up a new concept, a new "thing" that you
could imagine outside what already exists.
If you've understood
this so far, you'll be able to see that what we imagine are things that
already exist in certain condition or place, but they do exist and all
we do is create new ways of thinking about them, meaning; a planet
actually exist and it's a real thing, and so the gum. But a planet made
of gum, doesn't really exist, we've never experienced it, we can never
be sure until we find a real one.
You see, the Imagination is limited by simple and real things that exist.
My argument is as follows:
God;
if we define him as The first in the sense that he is the first to
exist, we could argue it is not a new idea the imagination created (remember humans are only able to imagine what already exists) but a
real thing we've known by existing thousands of years. In other words; all humans know god
exists, since all humans understand what God is by the definition we
established earlier. In a way or another the definition exists across all cultures.
The problem is when we started adding other
definitions and ideas to the word god; that's when it becomes like the
planet of gum, since it starts to lose its essential elements in the new
ideas and becomes a lot more than one simple true concept; like the gum
thing add to planet, the planet is the same, but it is now made of gum
meaning its no longer a simple idea which is why we imagine it in the
first place, so that it is no longer a true thing.
And so does
God, when we add to it more ideas; like being more than one true god, it
complicates the concept more, which means we can never be sure of it
until we actually experience it.
I hope this makes sense, and you
could understand it. I haven't been able to argue against this, but I
hope someone is capable to. The only way to argue against this is by
redefining god to something else, which I see helpless since almost all
religions see God as the first to exist; meaning there's a common
understanding of it across all humanity. And most of the religions add
to that definition he is the creator of everything, which I decided to
not include to simplify the argument and be consistent with the method
I'm using.