What does this mean

1. Alma 12: 8, 21
     8 And Zeezrom began to inquire of them diligently, that he might know more concerning the kingdom of God. And he said unto Alma: What does this mean which Amulek hath spoken concerning the resurrection of the dead, that all shall rise from the dead, both the just and the unjust, and are brought to stand before God to be judged according to their works?
         •  •  •
     21 What does the scripture mean, which saith that God placed cherubim and a flaming sword on the east of the garden of Eden, lest our first parents should enter and partake of the fruit of the tree of life, and live forever? And thus we see that there was no possible chance that they should live forever.