The moral side of the Bible is a side affect of growing closer to, and following the teachings of, Jesus.
I'd also say that one of the things that non-fundamentalist Christians have done particularly poorly in popular culture in the last 30 years is discuss how the Bible we have was written to a different culture than ours, and taking it 'literally' means stripping it from much of the intended meaning. You asked about creationism and the big bang, here's a book you could possibly be interested in, by a scholar of Genesis, discussing how the text of Genesis is not intended as a scientific document. It's called The Lost World of Genesis One, by John Walton (https://www.amazon.com/Lost-World-Genesis-One-Cosmology/dp/0...).
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