Jacob picks up the story of the Nephites nearly 55 years after Lehi had left Jerusalem with his family to travel to the Promised Land (America). Nephi gives command to his brother Jacob to continue the history of the people, known as the People of Nephi, or, the Nephites.
Jacob explains that he and his people; “…labored diligently among our people, that we might persuade them to come unto Christ, and partake of the goodness of God, that they might enter into his rest…” (Jacob 1:7) Jacob explains that his brother Nephi was growing old and because his people loved him as a king, they were desirous that future kings be called after him in the manner of 1st, 2nd, 3rd Nephi and so forth. Jacob explains that Nephi did grow old, and did die.
We learn from Jacob that there were many groups; Lamanites, Nephites, Jacobites, Josephites, Zoramites, Leumeulites and Ishmaelites. However, Jacob chose to categorize the people who were against the Nephites as “Lamanites” and those people for the Nephites as “Nephites”.
“It came to pass that the people of Nephi, under the reign of the second king, began to grow hard in their hearts, and indulge themselves somewhat in wicked practices… they also began to search much gold and silver, and began to be lifted up somewhat in pride.” (Jacob 1:15-16)
Jacob, seeing this great wickedness went to the Temple to teach the people, explaining that he and his priests would take; “…upon [themselves] the responsibility, answering the sins of the people upon [their] own heads if [they] did not teach them the word of God with all diligence…” (Jacob 1:19)
Jacob begins his Seven Chapter section of the Book of Mormon…