The Book of Mormon is the great standard we are to use in our missionary work. It shows that Joseph Smith was a prophet. It contains the words of Christ, and its great mission is to bring us to Christ. All other things are secondary. The golden question of the Book of Mormon is “Do you want to learn more of Christ?”
The Book of Mormon is for both member and nonmember. Combined with the Spirit of the Lord, the Book of Mormon is the greatest tool which God has given us to convert the world. If we are to have the harvest of souls, we must use the instrument which God has designed for the task—the Book of Mormon.

President Ezra Taft Benson