that they who are righteous shall be righteous still, and they
who are filthy shall be filthy still; wherefore, they who are
filthy are the devil and his angels; and they shall go away into
everlasting fire; prepared for them; and their torment is as a
lake of fire and brimstone, whose flame ascendeth up forever and
ever and has no end.

2 Nephi 9:17
17 O the greatness and the justice of our God! For he executeth
all his words, and they have gone forth out of his mouth, and his
law must be fulfilled.

2 Nephi 9:18
18 But, behold, the righteous, the saints of the Holy One of
Israel, they who have believed in the Holy One of Israel, they
who have endured the crosses of the world, and despised the shame
of it, they shall inherit the kingdom of God, which was prepared
for them from the foundation of the world, and their joy shall be
full forever.

2 Nephi 9:19
19 O the greatness of the mercy of our God, the Holy One of
Israel! For he delivereth his saints from that awful monster the
devil, and death, and hell, and that lake of fire and brimstone,
which is endless torment.

2 Nephi 9:20
20 O how great the holiness of our God! For he knoweth all
things, and there is not anything save he knows it.