Moroni explains that the latter-day gentiles may receive of the sealed portion of the Book of Mormon. To do so, they must exercise faith like unto the Brother of Jared and remember to serve the God of the land (Jesus Christ). If they do not repent and return to the Lord, they will not receive the greater portion. They will be swept off the land of promise. For study guide and scripture references, go to https://doctrineofchrist.com/receiving-the-sealed-portion-land-of-promise/