While translating the gold plates, Joseph Smith reluctantly allowed his associate, Martin Harris, to take the entirety of the translation to that point, 116 manuscript pages, to show to Harris's wife and her family, to convince them that his (Harris's) financial support of Smith was worthwhile. Although strictly charged to ensure its safety, Harris lost the manuscript. The lost portion, part of the large plates of Nephi, contained Nephi's record of his father, Lehi's, ministry and was known as The Book of Lehi. Joseph Smith recorded, in the Doctrine and Covenants, sections 3 and 10, that the Lord instructed him not to re-translate the portion of the book that was lost but to continue forward.