What is the central idea of the Bible? I know there are many denominations in the Christian circle. I was wondering if there is a consensus on what the Bible is about? Or in other words is there a consensus in Christianity today on what is the main theme of the Bible.

Luther said of the Bible:


  None of its parts are obscure... The scriptures is the book the more clear in all the world
  The Bondage of Will by Martin Luther
Jesus is the central "idea" of the Bible: 


The old Testament begins with the fall of man and the prophecy of the Redeemer (Jesus) 
The Jewish religion was constantly looking forward to the Messiah (Jesus)
The New Testament records Jesus' life and public ministry
The Epistles both explain the doctrine of Jesus as well as re-establish the proofs that the old testament prophecies were fulfilled in Jesus (esp. St. Paul's letter to the Hebrews)
Revelations/Apocalypse looks forward to the second coming of Jesus