The Book of Mormon exposes the enemies of Christ. It confounds false doctrines and lays down contention. (See 2 Ne. 3:12.) It fortifies the humble followers of Christ against the evil designs, strategies, and doctrines of the devil in our day.
The type of apostates in the Book of Mormon are similar to the type we have today. God, with his infinite foreknowledge, so molded the Book of Mormon that we might see the error and know how to combat false educational, political, religious and philosophical concepts of our time.
(Ezra Taft Benson, Ensign, May 1975, p. 64)