I see ample evidence in the world around me, and my life, to know God exists....it's all where you're looking I suppose.
I would rather say it's about how you are thinking.
As with all other things you need to question things before you take them for the truth.
Since you obviously believe in supernatural forces there is a chance that Satan defeated god and that you know serve him. It would be a small matter for Satan to make you all believe you were worshiping god instead of him...how do you feel about that argument?
(I'm not trying to provoke you or joke with your religion, it is meant as a serious question.)
BTW God did show himself. The Old Testament clearly states that...as does the New.
Um, let me put it like this...Have you at least considered the possibility of humans writing the bible and lying to decieve people?
Why should those answers be avoided? The God I believe in, is infinite. Man is finite. Since we're discussing God, why is it wrong for me to say that in answer to your question? I'm already arguing God exists right? Did that make sense?
Because such answers are designed to fill in the gaps where religions can't come with a suitable response. Since we have no other gods to compare with, and humans are seen as more elevated than other animals, we have no choice but to compare gods actions from a human view.
If god made us it is his fault that we can't understand his actions, leaving him responsible for an explanation...