05-Post-Pentecost Expansion of the Big Picture

As we have seen, Christ explicitly stated that while he
was laying down the main principles of the new
covenant, he was leaving it to the post-Pentecost writers,1
endued by the Spirit, to set out the full truth. Clearly, he
was laying down the principle that believers must build
every doctrine supremely on the post-Pentecost
Scriptures. In saying this, I intend no denigration of the
rest of Scripture – that should be obvious by now!; all I
am doing is underlining what Christ himself declared. He
stamped the works of the later writers with the final
authority in these matters.