You paint a caricature of people of faith as intellectual slobs who mindlessly read ancient books and follow manipulative sermons, but that is simply not true. I have known many a genius in my communities of faith.
I don't think all people who go to church (or otherwise have spiritual beliefs) are mindless idiots. Some are. Some atheists are idiots too. I suspect that many reading this are thinking right now that all atheists are idiots.
But I do think that trying to get more out of an ancient religious text than it was intended for is crazy. I think there's a section in their about boat building. Should we use it to design aircraft carriers? It's a book about history, contemporary law, how to live together, comforting stories and poetry, and about the philosophy and organization of a community of people that grew into a modern religion. Long ago I did learn a lot about the bible and ancient middle eastern history. The editors of the bible never intended it to be a finance book, a science book, or any of the many other things that some people try to use it for now.
I agree with you about Dave Ramsey. His assumptions are deceptive. He has helped lots of people get out of debt though, and I think that is a good thing.
His urging people to get out of debt is a good thing. His methods are questionable. Beyond that I think he is at best an idiot and at worst a manipulative scammer.
I very much agree with the comments people have made about the Bible not having a budgeting system or any advice for modern finance. Very true. However, my savings rate could be a higher if I did not fund the operations of an orphan home in a developing nation. The finance books might tell me to minimize unnecessary expenditure, but the Bible tells me that I should look after orphans and widows in their time of need. My response to modern finance and financial advice is guided by my outlook on life, which is shaped by scripture. And the 10 children currently living there make it very worthwhile!
You are supporting the orphanage based on your beliefs. That is laudable and, in my opinion, an excellent use of the philosophy and morality presented in the bible.
I also support a couple of charities that help people in need. But that has nothing to do with religion or finance. I do it because it is the right thing to do.