Gospel Principles manual chapter 7
2 Nephi 6-10 - mostly 2 Nephi 9
When we read Isaiah and revelation and other hard parts of scripture, we get credit for trying.
Once the Nephites move away from the Lamanites Jacob becomes the prophet and Nephi becomes essentially king.
2 Nephi 9: 10.
10 O how great the goodness of our God, who prepareth a way for our escape from the grasp of this awful monster; yea, that monster, death and hell, which I call the death of the body, and also the death of the spirit.
The synonym for death is separation.