Biblical textual growth (Jeremiah MT and LXX)
The Masoretic Jeremiah is substantially longer than the Greek Jeremiah; both were received as scripture by communities of faith.
If a prophet’s book can exist in a shorter and a longer edition in the Bible itself, then the move from the Book of Commandments to the Doctrine and Covenants is not a uniquely Latter-day Saint scandal. It is how revealed texts live in a people. The Lord’s preface already said the commandments were given in weakness, in their language, so they could be instructed further.

