"The core elements of the gospel message are found in all the holy scriptures but are most clearly given to us in the Book of Mormon and in the revelations to the Prophet Joseph Smith. Here Jesus Himself plainly declares His doctrine and His gospel, with which God's children must comply to 'have eternal life' (D&C 14:7)."
President Dieter F. Uchtdorf, Second Counselor in the First Presidency, "Have We Not Reason to Rejoice?" Liahona and Ensign, Nov. 2007, 19.