Neal A. Maxwell
"Other things Ether saw were simply too ‘great and marvelous’ for Moroni to record. (Ether 13:13) How marvelous these must have been—in view of the great things Moroni was able to record!
"Ether had a special perspective in his life. A fellow prophet, Moroni, paid Ether this compliment: ’And now I, Moroni, proceed to finish my record concerning the destruction of the people of whom I have been writing. For behold, they rejected all the words of Ether; for he truly told them of all things, from the beginning of man…’ (Ether 13:1-3, italics added)
“Ether’s degree of disclosure to those he taught no doubt made for sweeping sermons” (Ensign, Aug. 1978, “Three Jaredites: Contrasting Contemporaries”)