The Lord expands his point to Nephi by further explaining the nature of what is also called in the scriptures a "two-edged sword." This gift of the restoration can be to all either a tremendous blessing or curse. It will either provide life everlasting, or eternal destruction. The most powerful of revelations come with this two-edged razor - and man is left to his agency to select which of the two he will have.
This image of the dual nature of God's revelations is expanded in various ways in the scriptures, and forms the basis for Lehi's later discussion of opposition in all things. In the Old World, the early Christian literature emphasized this dual nature frequently enough that the theme is known as the "Doctrine of the Two Ways".