We have only a minor part of the scriptures had by the Jaredites. (Ether 1:1-5; 4:1-7.) There were many records in the hands of Mormon when he compiled, abridged, and wrote the Book of Mormon, none of which records are known to us now. (Words of Morm. 1-11.) It is reported by President Brigham Young that there was in the Hill Cumorah a room containing many wagon loads of plates (Journal of Discourses, vol. 19, p. 38.) The Brass Plates contained many passages and books that are not in the Old Testament as we have it. (1 Ne. 13:23.) Among these were the Books of Zenos, Zenock, Neum, and Ezias (1 Ne. 19:10-16; Jac. 5; 6:1; Alma 33:3-17; 34:7; Hela. 8:19-20; 15:11; 3 Ne. 10:16) and also the writings of Joseph who was sold into Egypt. (2 Ne. 3.)


Bruce R. McConkie, Mormon Doctrine, p.454 LOST SCRIPTURE Ether 4:6