From my perspective I think it is quite clear without any doubt that the whole Book is not the Word of God any more than any other of the other great sacred scriptures of the world. The Vedas, Upanishads, Dharmapada, Tao te Ching, Gospel of Thomas, Course in Miracles and a plethora of other writings by wonderful spiritual humans. These other works don't justify killing humans for things like disobedience, working the Sabbath, adultery, beating slaves because they are your property etc etc. Innocent bloodshed does little to appease the Divine in these other wonderful works. The thoughts and efforts put forth by humans aren't deemed unworthy of pleasing the Divine in these other works and humans themselves are held responsible for their own actions. Judaism and Christianity would not disappear. People will recognize the allegory and myth and human influence and begin to look deeper for the pearls and gems of truth which still shine through the muck that has been heaped upon them through human agenda and influence. The theology could possibly become so polished and shine so bright the whole world may be drawn to it.