The Word of God which is contained in the Scriptures of the Old and New Testaments1 is the only rule to direct us how we may glorify God and enjoy him.2
20 And are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner stone;
2 Timothy 3:16
16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
1 John 1:3
3 That which we have seen and heard declare we unto you, that ye also may have fellowship with us: and truly our fellowship is with the Father, and with his Son Jesus Christ.