Bruce R. McConkie on 2 Peter 1, Calling and Election Made Sure, More Sure Word of Prophecy, Second Comforter.
Bruce R. McConkie, Doctrinal New Testament Commentary. 3 vols. (Salt Lake City, UT: Bookcraft, 1973), 3:323–355
Elder McConkie's commentary on 2 Peter 1, including long discussions from the scriptures and teachings of Joseph Smith about making one's calling and election sure, and the more sure word of prophecy
Additional discussions and expansions on Elder McConkie's views on these topics are found in his "Messiah" series and in "A New Witness fo the Articles of Faith."