Nephi wrote about the two sets of plates he made (see 1 Nephi 9). The large plates of Nephi contained a detailed account of his people. The small plates of Nephi were a sacred religious record. In 1 Nephi 19:1–6, “first plates” and “other plates” refers to the large plates of Nephi; “these plates” refers to the small plates of Nephi (see commentary for Words of Mormon on page 134).