The new birth that Jesus explained to Nicodemus in John 3 is nothing short of a miraculous change that is wrought by God in the heart of sinful man. It is a second birth, it is supernatural, it is a spiritual birth, it is required in order for man to be in right fellowship with God. Even though Nicodemus was a high ranking Pharisee with many good qualities and deeds to his name, Jesus explained to him that, "You must be born again." Nothing we could ever do could earn our way to heaven. We need this miraculous new birth to be saved and to enter the kingdom of God.