KnoWhy #446 - Why Does the Book of Mormon Warn that a Lake of Fire and Brimstone Awaits Sinners in the Afterlife? (2 Nephi 9:16) KnoWhy #446 - Why Does the Book of Mormon Warn that a Lake of Fire and Brimstone Awaits Sinners in the Afterlife? (2 Nephi 9:16). Springville, UT: Book of Mormon Central, 2018.