Third Nephi - 12
Discussion related to this chapter in the Book of Mormon
Jesus calls and commissions the Twelve. He delivers to the Nephites a discourse similar to the Sermon on the Mount. He speaks the Beatitudes. His teachings transcend and take precedence over the law of Moses. Men are commanded to be perfect even as he and his Father are perfect. Compare Matthew 5. [ A.D. 34]
Source: LDS Scriptures