Why must it be 'one' or the 'other', and not that there is truth in both, and other religious works even? :idunno: Prove to readers that one MUST choose only one. Convince anyone, beyond..."because I say so"...or "this is just my personal religious belief ". Good luck.
You're assuming that the Bible is complete, perfect, final. To believe this,....you must deny the principle of 'progressive revelation' and therefore limit the Infinite Spirit, limiting 'God' to a collection of books or 'letters' written during a given period in time, capsulizing 'God' in time. You cant do that to the Eternal or Infinite.
You are apparently under the delusion that you can put 'God' in a box.
pj
The Holy Bible is the inspired "Word of God."
The Urantia Book is a fictional book written
by unholy men, influenced by Satan.