Hey, Gabs, so using your logic Biblical qoutes being used in a debate on the authenticity of the Bible is "crazy". That's like saying using a cook book to verify a recipe in a cooking debate is crazy.
Here's a question: suppose someone came up to you and asserted that everything he says is the truth, and that you should never argue with him. Then, to prove this assertion, he simply said that it's true because everything he says is the truth. Would you feel satisfied with this justification?
If not, and if it seems flawed to you, then I'm sorry to tell you that it's exactly the same reasoning that you're using. If the Bible
is the word of God, then it does not need to be stated, because it's already known to be the case. On the other hand, if the Bible is
not the word of God, then the fact that it says that it is does not make the statement true.
Therefore, the truth of the Bible's assertion that it is the word of God is entirely dependent on whether or not the Bible is indeed the word of God. Thus, the fact that the Bible asserts that it is the word of God does not give any new information about the Bible's status whatsoever. It's akin to a witness vouching for his own trustworthiness.