Moroni, the final character in the Book of Mormon, includes a few additional stories about the ‘Jaredite’ people, who lived around 1300 B.C. These plates were discovered by the people of Limhi approximately a thousand or so years later; about 125 B.C.
Many see this record as being a parallel to the other stories in the Book of Mormon, and, as such, also serves a purpose as a “wrap-up.” A study of the book, it’s culture, language, animals, and purported history in general, leaves some scratching their heads, and others laughing at the credulity required to swallow such fiction.
However, the difficulty with the Book of Ether doesn’t stop there. It’s compounded by the fact that the Nephites had these plates for more than a thousand years, and not a single ‘specific’ reference is made about them until Moroni is ready to bury the entire record.
“[N]o Nephite prophet besides Moroni quotes from the Jaredite record or refers to Jared and his brother, not does Jesus when he appears in America.”
~Dan Vogel, ‘Joseph Smith: The Making of a Prophet,’ page 347; 2004~
From Lehi onward, Nephite prophets regularly quote from the ‘Brass Plates of Laban,’ (Old Testament) out of respect for the work, and the insight it brings to the table. The Book of Ether pre-dates the brass plates, and had been a part of the Nephite society from the days of Mosiah, yet they make NO specific reference to them whatsoever?
This is what happens when a poor writer of fiction attempts to insert a story as an afterthought, yet doesn’t take the time to foreshadow their existence in any way by correcting or adding to the previous text. This lack of insight by Joseph Smith can be seen as damning evidence against the authenticity of the Book of Mormon as a whole.