Reply #37: Sure.

[laconicsax]

'God exists--it says so in the Bible, which was inspired by God.'

It's a circular argument and therefore invalid as a supporting source. The truth of the claim is never demonstrated, but assumed. Analogous examples follow:

Bilbo Baggins was a real historical figure--it says so in The Hobbit, which is a book inspired by Bilbo Baggins.

Winston Smith was a real person--it says so in 1984, which is a book about Winston Smith.

Both The Hobbit, and 1984 prove that Bilbo Baggins and Winston Smith exist exactly the same way that the Bible proves that God exists.

Imagine that you had never heard of Tolkien or Middle Earth and someone told you that Bilbo Baggins was a real historcal figure. Would you accept The Hobbit as proof?