I'm sorry but I believe if God wrote it We are to understand it or its for nothing. To understand this completely the terms need to be understood. Books ? Every generation have used books or word of mouth in BC many books were of the prophets. Today it's the bible in its many versions. God is good. If He judges surely you will know. Can these books be some, I say yes. How can any understand without any terms known. All terms need understood even lake of fire. Waiting for a reply ? Sorry I only ask for truth.