1. The Fall of the Angels

World Scripture

And the great dragon was thrown down, that ancient serpent, who is called the Devil and Satan, the deceiver of the whole world—he was thrown down to the earth, and his angels were thrown down with him.
Revelation 12.9

How you are fallen from heaven, O Lucifer, son of the morning! How you are cut down to the ground, you who weakened the nations! For you said in your heart, “I will ascend into heaven, I will exalt my throne above the stars of God; I will sit also upon the mount of the congregation, in the sides of the north; I will ascend above the heights of the clouds; I will be like the Most High.” Yet you shall be brought down to hell, to the depths of the pit.
Isaiah 14.12-15 (KJV)

And when We said to the angels, “Bow yourselves to Adam,” they bowed themselves, save Iblis; he said, “Shall I bow myself to one whom You have created of clay?” He said, “What do you think? This [creature] You have honored above me, if You defer me until the Day of Resurrection I shall assuredly master his seed, save a few.”

Said We, “Depart! Those of them that follow you—surely hell shall be your recompense, an ample recompense! And startle any of them whom you can with your voice; and rally against them your horsemen and your foot [soldiers], and share with them in their wealth and their children, and promise them!” But Satan promises them naught, except delusion.
Qur’an 17.61-64

The Lord God spoke to Moses, saying, “That Satan… is the same who was from the beginning, and he came before me, saying, ‘Behold, here am I; send me, I will be thy son, and I will redeem all mankind, that not one soul shall be lost. Surely I will do it; therefore give me my honor.’

“But my Beloved Son, who was my Beloved and Chosen from the beginning, said to me, ‘Father, Thy will be done, and the glory be Thine forever.’

“Therefore, because that Satan rebelled against me, and sought to destroy the agency of man, which I, the Lord God, had given him, and also, that I should give to him my own power; by the power of my Only Begotten [Christ], I caused that he should be cast down;

and he became Satan, yea, even the devil, the father of all lies, to deceive and to blind men, and to lead them captive at his will, even as many as would not hearken unto my voice.”⁷
Pearl of Great Price, Moses 4.1-4 (Latter-day Saints)

And the angels that did not keep their own position but left their proper dwelling have been kept by Him in eternal chains in the nether gloom until the judgment of the great day; just as Sodom and Gomorrah and the surrounding cities, which likewise acted immorally and indulged in unnatural lust, serve as an example by undergoing a punishment of eternal fire.
Jude 6-7

Teachings of Sun Myung Moon

God is the owner, and we human beings are His sons and daughters. Angels, on the other hand, were created as God’s servants; hence they are also the servants of His children. Among all the angels, the archangel Lucifer was the closest to God as well as to Adam and Eve. He knew all the stories behind the scenes. During the process of creating the universe, prior to the creation of Adam and Eve, God would discuss things with the archangel and send him to do his errands. In other words, the archangel was like a servant of a wealthy lord. He was also in the position of a servant to his master’s children, no matter how young or immature they were.
(53:331, March 6, 1972)

God created the angelic world and assigned Lucifer (Isa. 14.12) to the position of archangel. Lucifer was the channel of God’s love to the angelic world, just as Abraham was the channel of God’s blessing to the Israelites. In this position he virtually monopolized the love of God. However, after God created human beings as His children, He loved them many times more than He had ever loved Lucifer, whom He had created as His servant.

In truth, God’s love toward Lucifer did not change; it was the same before and after the creation of human beings. Yet when Lucifer saw that God loved Adam and Eve more than him, he felt as if there had been a decrease in the love he received from God. This situation is similar to that in the biblical parable of the laborers in the vineyard. (Matt. 20.1-15) Although the laborers who had worked since morning received a fair wage, when they saw that those who came later and worked less received just as much, they felt underpaid. Lucifer, feeling as though he were receiving less love than he deserved, wanted to grasp the same central position in human society as he enjoyed in the angelic world, as the channel of God’s love. This was why he seduced Eve, and this was the motivation of the spiritual fall.
(Exposition of the Divine Principle, Fall 2.2.1)

God cursed the fallen angel, saying, “Upon your belly you shall go, and dust you shall eat all the days of your life.” (Gen. 3.14) “Upon your belly you shall go” means that the angel would become a miserable being, unable to function properly or to perform its original service. To “eat dust” means that ever since the angel was thrown down from heaven (Isa. 14.12, Rev. 12.9), he has been deprived of life elements from God. Instead, he has had to subsist on evil elements gleaned from the sinful world.
(Exposition of the Divine Principle, Fall 1.4)