Most books contained in libraries of the world were authored for contemporary readers. And they were generally written for profit, with royalties accruing from successful sales.
Not so with the Book of Mormon. It was written anciently for our day. It reveals the endless Lordship of Jesus Christ in accounts of two ancient American dispensations, preserved for the benefit of us who live in this dispensation of the fulness of times. Certainly no royalties came to its authors. In fact, they paid dearly for their privilege of participation. What motivated them? Their devotion to God! The book’s four major writers—Nephi, Jacob, Mormon, and Moroni—were all eyewitnesses of the Lord, as was its martyred translator, the Prophet Joseph Smith. (“A Testimony of the Book of Mormon,” Ensign, Nov. 1999.)