Original sentence: In the Book of Mormon, the Nephites are a people descended from or associated with Nephi, a prophet who, according to the text, left Jerusalem at the urging of God in 600 BC and traveled with his family to the Western Hemisphere, arriving in the Americas circa 589 BC
Edited sentence: According to Mormon mythology, the Nephites are a people descended from or associated with Nephi, a prophet who, according to the Book of Mormon, left Jerusalem at the urging of God in 600 BC and traveled with his family to the Western Hemisphere, arriving in the Americas circa 589 BC