Where do you draw the line?
Flaming words in the sky that can be seen at all times and be understood by all people of all lands and languages. Ever heard the phrase "Spectacular claims require even more spectacular proof?" If you're trying to say a book (any book) is here because some supreme being made it be here its your duty to supply the proof behind it, not the opposers duty to try to prove its not. Besides, if the message of the bible is oh so important why would this oh so wise god being make it so hard to understand? Dangerous equipment is labeled very clearly "Don't touch here." That's on stuff that could just cause some minor physical harm. They make it nice and clear and easy to understand because its important. If god had an even more important message to get out to all of mankind why wouldn't he do the same thing?
Can you prove that piece of paper on my table isn't written by god? How long its been around isn't important. Using your logic the bible was unimportant when it was written. At what point did it become important? Even more important that all of it though, when are you going to send me all your money like it says on the paper on my table. Its got all the wonderful scientific and prophetic truths that the bible does. You had better send me the money soon or else you'll have to endure everything that my friend dreamed last night after eating some funky mexican food. This paper will be around for thousands of years because it also says its written by god. How can you not believe a paper that says right on it its inspired?
Do a little research. One of the biggest reasons why the bible has been so translated and held in high regard for so long is power. People point to a book and say "Hey, its not me that's keeping you down, god wants me to!" Of course they'd try to keep that book around as much as they possibly could. Why else would you need to keep it going? Its obvious whose benefit it would be to keep it going.
Back down the bullies to the back of the bus
Its time for them to be scared of us