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Also, you can call it crazy that we take the Bible literally, and many other Christians think we are as well. But the problem with just picking and choosing which parts of the Bible we agree with or don't agree with is that we are undermining the Bible. We are in essence saying that it could all be "fairy tales." Which parts are then made up? Do we just pick what makes sense based on what scientists are speculating is true? If we don't like some of God's laws do we just ignore them? Where is that line? ...
Logic. I think sometimes unbelievers forget that people of faith are not acting illogically if you understand their premiss that God is magical. If you believe that God is a real and supernatural being then science means noting in discovering the truth of God. There are no laws of nature in religion because they can be changed at any point. Therefore pointing out the impossibility of a 6000 year old Earth cannot be argued.