1 Nephi opens the Book of Mormon in the voice of its narrator — Nephi himself, a younger son who became the founding prophet of his people. Everything the rest of the book builds on is laid down here.
The book moves in three great arcs. The departure from Jerusalem (chapters 1–7): Lehi, Nephi’s father, receives a prophetic warning that the city will fall (1 Nephi 1:6–15↗) and leads his family into the wilderness. Two return journeys interrupt the flight — for the brass plates, a scriptural record, and for Ishmael’s family — the first giving Nephi the watchword that defines him: “I will go and do the things which the Lord hath commanded” (1 Nephi 3:7↗).
The visions (chapters 8, 11–14) follow. Lehi dreams of the tree of life; Nephi, asking to understand his father’s dream, receives a far longer vision of his own — the mortal ministry of Christ, a coming apostasy and restoration, and the gathering of Israel in the last days.
The journey (chapters 16–22) takes the family across the Arabian wilderness, by ship across the ocean, to a promised land. The Liahona — a compass given by God — functions only according to the faith and diligence of those who follow it. The book closes with the first quarrels that foreshadow the centuries-long division between Nephites and Lamanites, and with Nephi’s extended quotation of Isaiah (chapters 20–21, drawing on Isaiah 48–49↗) to set his family’s story inside the wider covenant history of Israel.
Two patterns established here govern the whole Book of Mormon: the exodus pattern — a faithful remnant led out of a doomed society to a land of promise — and the conviction that personal revelation, available to Nephi as much as to his prophet-father, stands alongside prophetic authority rather than under it.