I hear a lot of people today saying we are all God’s children. If we are already God’s children, why do we need to be reborn? (John 3:7) “Marvel not that I said unto thee, Ye must be born again.” It was after Adam and Eve were driven out of the garden that they began to bare children. At this point they became separated from God, in essence spiritually dead. From that time until Christ came they were required to offer blood sacrifice for sins each year. When Christ came and was crucified on the cross He fulfilled that sacrificial law.
We are no longer required to make blood sacrifice, but our relationship with God is still broken. We are still carnal man, spiritually dead. That is why Jesus said (Matthew 8:21-22) “And another of his disciples said unto him, Lord, suffer me first to go and bury my father. But Jesus said unto him, Follow me, and let the dead bury their dead.” Apparently His disciple was not spiritually dead to Christ and had obeyed the requirements and was spiritually alive in Christ, while the others were not. To be born again and become spiritually alive then has requirements. It would appear a change has to be made, a change from spiritually dead to spiritually alive. How does this happen? It happens by obedience to the doctrine of Christ. Faith, repentance, baptism, and receiving the gift of the Holy Ghost. ( Heb 6:1-2) Perhaps the one thing that a lot of people fail to understand is that when we go down into the waters of baptism we lay down the spirit of man and come out a spiritually empty body. ( Eph 4:22-24) “And now I speak unto you concerning the former conversation, by exhortation, that ye put off the old man, which is corrupt according to the deceitful lusts; And be renewed in the mind of the Spirit; And that ye put on the new man, which after God is created in righteousness and true holiness.”
When we come out of the water and receive the Holy Ghost we become a child of God, having been born of the same spirit that brought Christ into the world. We become brothers and sisters to Jesus Christ. This Is why we do not baptize into a Church, but rather we baptize into the family of God.” Joseph F Smith