Well now it seems to me someone around here has a sig that includes a link to a page about good argumentation. Since my logic and philosophy courses are a few years behind me now, it was a useful refresher.
I believe you'll find a section on 'burden of proof' which should provide enough theory to show why it is the existence of God that requires proof, logically speaking, not the absence. (You'll also find that it is the Bush's responsibility to prove a link between Al Qaeda and Saddam, but would it be the conspiracy-theorists that would need to prove a conspiracy in the last presidential election).
Burden of proof has no bearing on what you choose to believe. But it should help you understand why people who don't believe that every word of the bible is true don't find the argument "it says so in the bible" very convincing. As a matter of fact, since many arguments from scripture are intended to support scripture itself, this is also 'beggin the question'. I don't mind if anyone around here wants to believe every semi-colon in the bible, though they might want to have a long look through an annotated version, to see which words have questionnable translations from the Hebrew and other original languages.
(Did you know there is a strong argument that "Adam" is actually described as a 'human' not a 'man', and that it may have been a 'side' that was taken, not a 'rib' - the ancient languages simply do not make the distinctions clear enough to be certain).
Bugs you might want to have a look at the old, capital-C Church, which maintained a two-fold policy that anything which did not agree with scripture was false, and if it were found to be true, some pice of scripture had to be found that could be interpreted as supporting it. I guess this is a necessary policy if you want to twist the world to fit seamlessly into a few hundred pages of repeatedly translated text. It seems to me the seams are showing quite badly at this point in time...
I also distrust any and all use of the word 'debunked'. It is the word of choice for those who claim to have defeated science to which they are morally opposed. The word is shows up most commonly when attempting to discredit, despite a lack of evidence, the science behind global warming, and evolution. No matter how much you want something to be true (or false), you can't make it be so. A sad example of this was cold fusion, which coincidentally is about the only science I can see describing as 'debunked'. Though it's the subversion of scientific methods I find offensive here, not the science itself.
If the science really was 'bad', correct terms would include discredited, called into question, and even 'fallen into disfavour'. And none of these terms applies to well supported science until some other study comes along and finds significant problems with its principles.