Why didn't Mormon write the names of the three immortal disciples?

I [Jesus] am endless, and the punishment which is given from my hand is endless punishment, for Endless is my name. Doctrine & Covenants 19:10

Behold, I was about to write the names of those who were never to taste of death, but the Lord forbade. 3 Nephi 28:25

Send comments to Steve Wells
at swwells(at)gmail.com