Lucifer
The Fallen Angel

All angels were created holy and “perfect” in their ways by God. Created with the purpose of serving Him and His creation, God assigned all angels with certain roles and functions within the hierarchy system, having the lowest rank as common angels, then seraphim, living creatures, cherubim and finally, the arch angels. Lucifer, as an arch angel, was once one of God’s top angels. As Lucifer, meaning “day star” or light bearer,” he was an anointed cherub (not cheribim), holding a very important leading position in heaven. Out of all of the trillions of angels, Lucifer was one of the few who could come on the mountain of God and spend time in His presence. Ezek 28:14 Thou art the anointed cherub that covereth; and I have set thee so: thou wast upon the holy mountain of God; thou hast walked up and down in the midst of the stones of fire.

Ezekiel 28: 12-18 tells us more about this mighty angel than any other angel listed in Scripture. He was full of wisdom and perfect in beauty.  God gave him rulership over the earth, having many angels under his authority long before the creation of Adam and Eve, probably having the Garden of Eden as his headquarters. 13 Thou hast been in Eden the garden of God…. Lucifer was a king and a priest upon the earth, having his own throne and many sanctuaries.  He was beautiful, having precious stones as his covering, with pipes of music already built in him. For that reason, most biblical scholars believe Lucifer was the head over all music in heaven and earth.  He had it within his power to go back and forth from heaven to earth to spend time in God’s presence, to refresh and renew, serve, and then return to his rulership over the earth again. 13…every precious stone was thy covering, the sardius, topaz, and the diamond, the beryl, the onyx, and the jasper, the sapphire, the emerald, and the carbuncle, and gold: the workmanship of thy tabrets and of thy pipes was prepared in thee in the day that thou wast created.

All angelic beings were created with the ability to choose, but not given the right of choice. The grandeur of Lucifer’s high office overwhelmed him with pride; thus, he violated his right of choice when pride set in, wanting more than the earth to rule. He wanted it all, which meant taking over God’s position as ruler over all of the worlds.  His goal - defeat God and sit upon His throne in heaven. 15 Thou wast perfect in thy ways from the day that thou wast created, till iniquity was found in thee. 17 Thine heart was lifted up because of thy beauty, thou hast corrupted thy wisdom by reason of thy brightness. Isa 14:13-14… 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.

Lucifer coerced one-third of the angelic hosts that they could win the battle over God for the heavenly throne; thus a war began in heaven. These angels, very likely, were the one under Lucifer's authority upon the earth.  In response, God assigned the archangel Michael and all of the remaining angelic beings to battle against Lucifer and his followers. Lucifer not only lost the battle in heaven, he lost his position in heaven and earth. Lucifer and all of his followers were thrown out of heaven and went spiraled down to earth.

Ezek 28:18 Thou hast defiled thy sanctuaries by the multitude of thine iniquities, by the iniquity of thy traffic; therefore will I bring forth a fire from the midst of thee, it shall devour thee, and I will bring thee to ashes upon the earth in the sight of all them that behold thee.
Rev 12:7-9 And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels, And prevailed not; neither was their place found any more in heaven. 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.
Isa 14:12-14 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...
Rev 12:4 And his tail drew the third part of the stars of heaven, and did cast them to the earth…
Luke 10:18 And he (Jesus) said unto them, I beheld Satan as lightning fall from heaven.

Upon losing his princely appointment, Lucifer, the once anointed cherub, became Satan the adversary.