Brian, are you sure that your sources are the final word on this subject?
I will readily admit that we dont know for sure...but Im less likely to admit that we know the source of authorship. Isnt the Holy Spirit one of the candidates? Oh thats right....we dont know if we know the Holy Spirit or not, right?
All writing is simply a creation of the human mind and as such does not have to be what the author believed, it is simply what the author wants the reader to believe.
So what you are essentially asserting is that all human communication has its origin in the human mind----am I right?
We do not know that the Bible was inspired. We can believe that it was, and a case can be made for some theological utterences as having an origin apart from human sources...but we do not know for sure.
On the other hand, are we to conclude that all early Bible and church writers had an agenda that was human and fallible? If so, can any Holy Book be trusted? If not, how in the world can a person make heads or tails of religion anyway?