As if entranced, the wicked have looked upon the coronation of the Son of God. They see in His hands the tables of the divine law, the statutes which they have despised and transgressed. They witness the outburst of wonder, rapture, and adoration from the saved; and as the wave of melody sweeps over the multitudes without the city, all with one voice exclaim, “Great and marvelous are Thy works, Lord God Almighty; just and true are Thy ways, Thou King of saints” ( Revelation 15:3 ); and, falling prostrate, they worship the Prince of life. GC 668.4 Satan seems paralyzed as he beholds the glory and majesty of Christ. He who was once a covering cherub remembers whence he has fallen. A shining seraph, “son of the morning;” how changed, how degraded! From the council where once he was honored, he is forever excluded. He sees another now standing near to the Father, veiling His glory. He has seen the crown placed upon the head of Christ by an angel of lofty stature and majestic presence, and …
"And they sing the song of Moses the servant of God, and the song of the Lamb, saying, Great and marvellous are thy works, Lord God Almighty; just and true are thy ways, thou King of saints."
Ellen White directly references Revelation 15:3 in this passage.
Memory recalls the home of his innocence and purity, the peace and content that were his until he indulged in murmuring against God, and envy of Christ. His accusations, his rebellion, his deceptions to gain the sympathy and support of the angels, his stubborn persistence in making no effort for self-recovery when God would have granted him forgiveness—all come vividly before him. He reviews his work among men and its results—the enmity of man toward his fellow man, the terrible destruction of life, the rise and fall of kingdoms, the overturning of thrones, the long succession of tumults, conflicts, and revolutions. He recalls his constant efforts to oppose the work of Christ and to sink man lower and lower. He sees that his hellish plots have been powerless to destroy those who have put their trust in Jesus. As Satan looks upon his kingdom, the fruit of his toil, he sees only failure and ruin. He has led the multitudes to believe that the City of God would be an easy prey; but he know…
"How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down to the ground, which didst weaken the nations! For thou hast said in thine 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 thou shalt be brought down to hell, to the sides of the pit."
The EGW passage describes Satan's original state of innocence, his rebellion, and his desire to be like God, which are all key themes found in Isaiah 14:12-15, a passage often interpreted as referring to Satan's fall.
"And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him."
The EGW passage describes Satan's downfall and deception, which aligns with the depiction of Satan in Revelation 12:9 as the deceiver of the whole world who was cast out.