Probably the books of Genesis, Exodus, Leviticus, Numbers, and Deuteronomy; also called the Torah, the Law, or the Pentateuch. After Nephi 1 and his brothers returned to their wilderness encampment with the plates of brass , Lehi diligently searched the sacred record from the beginning (1 Ne. 5:10). He found that the plates of brass included "the five books of Moses, which gave an account of the creation of the world, and also of Adam and Eve " (1 Ne. 5:11). The Book of Mormon further suggests that the plates of brass version of the five books of Moses contained additional information not found in the current text of the Old Testament (1 Ne. 13:23; cf. Moses 1:41).
Book of Mormon prophets used the plates of brass in their preaching and writing. The information Nephi used in his recounting of Israel 's exodus from Egypt, as well as Lehi's discourses to his sons on the fall of Adam (2 Ne. 2) and the prophecies of Joseph 1 (2 Ne. 3) likely would have come from the five books of Moses (1 Ne. 17). Later prophets, such as Abinadi, Ammon 2, Amulek, Alma, and Nephi apparently used the five books of Moses as a source of inspiration for their teaching (Mosiah 12:33 –37; 13:5–35; Alma 18:36; 33:19–20; 34:7; Hel. 8:13–20).