I believe in the Big Bang Theory, AND I believe in Jesus Christ.
But the Big Bang Theory leaves one basic question unanswered.
HOW did the Big Bang happen?
After the last star burns out in our universe 10 million years from now all the stuff floating around in our dark universe will gradually come together. It may take 25 billion years and then when it all comes together near the black hole sucking it all together boom a new universe will start.
What's beyond out seeable universe? Infinite other universes.
A God isn't necessary. You are a part of this universe be glad you were born. The spirm that didn't make it? That's their little role in this universe. Better luck the next go around