" not being sure of the existence of God.
There's evidence showing the former, and a lack of same showing the latter"
Are you blind? No, seriously are you blind? Because if you're not sight impaired, the evidence of the existence of God is everywhere you look.
No, there isn't. There are many things that you can point to to reinforce your beliefs, but, objectively, they aren't evidence of squat, deity-wise.