The Westminster Shorter Catechism (1648)

16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:

20 And are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner stone;

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.

4 And these things write we unto you, that your joy may be full.