We believe that Lucifer, the Son of the Morning (Isaiah 14:12), fell while still in the premortal existence. This fall resulted in Lucifer being eternally deprived of a physical body. Ultimately, he will dwell in Outer Darkness, where there is “weeping and wailing, and gnashing of teeth.” (Alma 40:13) In the meantime, Lucifer, and the spirits who followed him in the War in Heaven (Revelation 12:7), play a role in the Plan of Salvation, for “it must needs be that the devil should tempt the children of men, or they could not be agents unto themselves; for if they never should have bitter they could not know the sweet.” (D&C 29:39)
This question comes from my wife, and I found it quite interesting: If Lucifer was already condemned to spend eternity in Outer Darkness, what more could God do to him with the curse imposed in the Garden of Eden? That passage reads: “And the LORD God said unto the serpent, Because thou hast done this, thou art cursed above all cattle, and above every beast of the field; upon thy belly shalt thou go, and dust shalt thou eat all the days of thy life: And I will put enmity between thee and the woman, and between thy seed and her seed; it shall bruise thy head, and thou shalt bruise his heel.” (Genesis 3:14-15) The curse of the serpent going upon its belly is surely metaphorical, but what does that represent? Also, it seems to me that “enmity” already existed between Jesus and Lucifer, dating back to the War in Heaven, so what does this mean to say that the Lord will “put enmity between thee and the woman, and between thy seed and her seed”?
In looking for answers to these questions, I was intrigued to find the following about the origins of the devil from the Catholic Encyclopedia:
Mention is made of the Devil in many passages of the Old and New Testaments, but there is no full account given in any one place, and the Scripture teaching on this topic can only be ascertained by combining a number of scattered notices from Genesis to Apocalypse, and reading them in the light of patristic and theological tradition. The authoritative teaching of the Church on this topic is set forth in the decrees of the Fourth Lateran Council …, wherein, after saying that God in the beginning had created together two creatures, the spiritual and the corporeal, that is to say the angelic and the earthly, and lastly man, who was made of both spirit and body, the council continues:
“Diabolus enim et alii dæmones a Deo quidem naturâ creati sunt boni, sed ipsi per se facti sunt mali.” (“the Devil and the other demons were created by God good in their nature but they by themselves have made themselves evil.”)
Here it is clearly taught that the Devil and the other demons are spiritual or angelic creatures created by God in a state of innocence, and that they became evil by their own act.
I know that we are often mocked by so-called Christians for teaching that Lucifer and Jesus were brothers. It is interesting to me that the “official” teaching of the Catholic Church so closely resembles our own. My assumption is that God reveals such information for our benefit. If that is true, how do we benefit from knowing the origins of Satan? Why do we know so little of his destiny?