Nephi's younger brother Jacob is chosen by God to lead the people after Nephi's passing, owing to his profound faith and divine revelations experienced from his youth.

Jacob's teachings were accompanied by angelic visitations, providing Jacob with insights into Christ’s ministry and the future of America, enriching the spiritual guidance he offered to the Nephite people.

This was a critical transition of leadership as Jacob denounces unchastity and plural marriage  among the people, who justified the abomination by David and Solomon. Jacob warns the Nephite people of their growing pride and moral complacency, and makes fervent attempts to steer them back to righteousness through the clear and uncompromising word of God.