There are some who choose to base their morality on the teachings of the Bible without believing that Jesus ever really existed. There are yet others who choose to base their morality on the teachings of the Bible while believing that a historical Jesus did in fact exist, but he was not divine. There are yet others who reject the Bible as immoral altogether and base their morality on secular humanism. I say the Bible is the inspired Word of Almighty God, and believe Jesus Christ is the eternal Son of the Father full of grace and truth. I believe He is divine and made claims to be, and approach morality with this in view.
John 8:58 Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I am.