The incarnation of the Son of God is necessary because the life we have through the new birth is life in union with the incarnate Christ. Jesus said, “I am the living bread that came down from heaven. If anyone eats of this bread, he will live forever. And the bread that I will give for the life of the world is my flesh” (John 6:51). That life that we have in union with Christ is the life that Jesus obtained for us by the life he lived and the death he died in the flesh.