(Isa. 14:12–17; D&C 76:25–26; 29:36; Moses 4:3–4; 1 Ne. 22:26; 2 Ne. 2:17–18)
The only places in the Bible and the Book of Mormon where the title Lucifer is used are Isaiah 14:12 and 2 Nephi 24:12. In Doctrine and Covenants 76:25–28 we learn that Lucifer (which means “light bearer”) was the premortal name of Satan. Because of his rebellion against God he fell from his position of “authority in the presence of God” (v. 25) and “was called Perdition” (v. 26), which means “destruction.”
(Book of Mormon Student Manual, Religion 121 and 122 [Salt Lake City: The Church of Jesus Christ of Latter-day Saints, 1989], 34.)
The name Lucifer (Hebrew helel) means “shining one.” If the name is given different vowels (helal), it signifies the crescent of the moon, having possible meaning that Lucifer had less light (symbolically) than the full moon, or Lucifer’s light waned as does the light of the moon during its cycle. Further, Lucifer’s light was far less than the light of Jesus Christ, whose light is the sun (Ps. 84:11; D&C 88:7–9). Isaiah may also be using a play on words, for Lucifer’s name (helel) sounds like a word Isaiah uses in 13:6 where he commands those of Babylon to “Howl!” (Hebrew helili).
(Donald W. Parry, Jay A. Parry, and Tina M. Peterson, Understanding Isaiah [Salt Lake City: Deseret Book Co., 1998], 148.)
Perhaps there are principles here that few men have thought of. No person can have this salvation except through a tabernacle.
Now, in this world, mankind are naturally selfish, ambitious and striving to excel one above another; yet some are willing to build up others as well as themselves. So in the other world there are a variety of spirits. Some seek to excel. And this was the case with Lucifer when he fell. He sought for things which were unlawful. Hence he was sent down, and it is said he drew many away with him; and the greatness of his punishment is that he shall not have a tabernacle. This is his punishment. So the devil, thinking to thwart the decree of God, by going up and down in the earth, seeking whom he may destroy—any person that he can find that will yield to him, he will bind him, and take possession of the body and reign there, glorying in it mightily, not caring that he had got merely a stolen body; and by and by some one having authority will come along and cast him out and restore the tabernacle to its rightful owner. The devil steals a tabernacle because he has not one of his own: but if he steals one, he is always liable to be turned out of doors.
(Joseph Smith, Teachings of the Prophet Joseph Smith, comp. Joseph Fielding Smith [Salt Lake City: Deseret Book Co., 1976], 297–98.)
Most scholars identify the “morning star” or Lucifer as a mythical figure or as a figurative representation of a Babylonian king. Latter-day Saints are fortunate to have modern scripture that explains who Lucifer is. Additional modern scripture explains his actions and attitude in greater detail. (Compare Isa. 14:12–14 with D&C 76:25–27; 29:36–37; Moses 4:1–4.)
(Victor L. Ludlow, Isaiah:Prophet, Seer, and Poet [Salt Lake City: Deseret Book Co., 1982], 188.)
As people fill their hearts with the Spirit of God, there will be no room in their hearts for Satan’s influence. Isaiah delighted in the future binding of Satan for one thousand years and the eventual banishment of Satan to outer darkness following the Millennium.
In teaching this concept Isaiah employed a satirical song. He portrayed the ancient king of Babylon as a type for Lucifer. Similar to the king of Babylon, Lucifer has ruled over an empire built upon tyranny and oppression … (Isa. 14:13–14). Isaiah prophesied that the day will come when Lucifer will “be brought down to hell, to the sides of the pit” (Isa. 14:15). John the Revelator was shown an angel who had the key of a bottomless pit. “He laid hold on … that old serpent, which is the Devil, and Satan, and bound him a thousand years, and cast him into the bottomless pit, and shut him up, and set a seal upon him, that he should deceive the nations no more, till the thousand years should be fulfilled” (Rev. 20:2–3). Satan will be held in such low regard that people will mock him, saying, “Is this the man that made the earth to tremble, that did shake kingdoms; … that opened not the house of his prisoners?” (Isa. 14:16–17). Truly, during the Millennium Lucifer will be bound and will “not have power to tempt any man” (D&C 101:28). Therefore, he will “have no place in the hearts of the children of men” (D&C 45:55).
(Craig J. Ostler, Voices of Old Testament Prophets: The 26th Annual Sidney B. Sperry Symposium [Salt Lake City: Deseret Book Co., 1997], 75–76.)