morality is subjective and people don't have free will

[Neo-Scholastic]

Would you follow a moral from the book if it didn't agree with your gut?

I do. Like divorce and remarriage for any reason other than adultery. Personally, we also stopped short of certain infertility procedures because of moral considerations - things that don't seem problematic except in the light of Scripture. I could give other examples, but those should suffice. So I'm with SteveII. Our internal moral compass and reason both serve as the initial guides from general revelation but because of our fallen nature they need to be supplemented by special revelation.

*steps on cricket*