As a new creation in Jesus, like a newborn baby, we are expected to grow up! Our growing in our salvation and faith in Jesus involves learning to live in the new ways of God’s Word, as lived out by Jesus. In order to grow up in our new life in Jesus, we have to put off the things of our old way of life. We cannot become the mature, new creation in Jesus we are, while simultaneously remaining the person we were in our old nature. We can live for Jesus, or the world, but not both. We cannot “grow up” in our salvation, and remain the same.