Jesus answered, verily verily I say unto thee, Except a man be born again of water and of the Spirit, he cannot enter, into the kingdom of God. (St John 3:5).
Water baptism is an essential part of Salvation. It is a part of the New Birth experience and expresses faith in God by obedience to His Word. It is an identification with Christ's burial and should be administered in the name of Jesus ( Acts2:38)