I respect whatever someone decides to believe in, but what I've never understood about the belief in God is why people have a need for the universe to have a creator, but don't have need for God to have one as well. Who made God? Saying God created the universe but neglecting to provide a creator for God simply pushes the chain one link back, but doesn't really explain where the chain came from.
You can say "God is defined as that Being who has always existed," but of course a mere definition doesn't make something true. Poseidon is defined as the god of the sea who can bring about earthquakes at will, but when the ground shakes, we don't beg Poseidon for mercy. Merely defining him as such doesn't make him real. The Loch Ness is defined as...and so on.
You need something more than a mere definition to posit something as real.
I know I'm preaching to the choir (NPI) on this forum, but I'd be sincerely interested in a believer's perspective on this.
And no, atheists don't have an answer to this, which explains the study of cosmology.