THE DEFEAT OF LUCIFER BY SAINT MICHAEL

 [8]And they prevailed not, neither was their place found any more in heaven. [9] And that great dragon was cast out, that old serpent, who is called the devil and Satan, who seduceth the whole world; and he was cast unto the earth, and his angels were thrown down with him. (Rev.12:8-9)

                                                              Lucifer falling from heaven

 The holy prince Michael hurled from heaven the dragon Lucifer with the invincible battle-cry: “Who is like unto God?” So powerful was this cry, that it sufficed to precipitate that proud giant and all his host to the earth and cast him in dreadful ignominy to the centre of the earth. From that time he began to be called dragon, serpent, devil and satan, imposed upon him by the holy archangel in that battle as a testimony of his iniquity and malice. Deprived of the happiness and honour, of which he had become unworthy, he was despoiled also of his names and honourable titles, acquiring in their stead such as designate his ignominy. The wicked plans which he proposed and enjoined upon his confederates, namely, that they should deceive and pervert all those that live in the world, manifest sufficiently his wickedness. 

                                                                                        And satan fell like lightning from heaven down to the abyss of hell

He therefore, who intended to scourge the nations, was consigned to hellish regions, as Isaias says in the fourteenth chapter, to the profound abyss, and his cadaver was delivered to the moth and the worm of his own bad conscience; thus was fulfilled in Lucifer all that the prophet says in that chapter. The good angels, persevering in grace, merited eternal happiness and the disobedient ones, rebelling against God, merited the punishment, which they now suffer.
Isaiah chap.14 verses  “[12] How art thou fallen from heaven, O Lucifer, who didst rise in the morning? how art thou fallen to the earth, that didst wound the nations? [13]And thou saidst in thy heart: I will ascend into heaven, I will exalt my throne above the stars of God, I will sit in the mountain of the covenant, in the sides of the north. [14] I will ascend above the height of the clouds, I will be like the most High. [15] But yet thou shalt be brought down to hell, into the depth of the pit.”
“I saw satan fall like lightening from heaven”  (Luke 10: 18)
After his fall Lucifer son of the dawn became fully corrupted. His rebellion was the first sin and so he became the father of darkness.