Lucifer’s name meant light-bearer when he was created as he was a reflection of Gods brightness as one who had favor in the Lord. God changed his name to Satan, which means adversary, after he fell from heaven. God changed many names from one to another in the Bible to reflect his glory through them as a nation. Lucifer was created perfect in all his ways with beauty, wisdom and freewill. God placed him as the guardian or protector over the throne of God in heaven. He was entrusted with many possessions and found much favor in the Lord.
God created the earth and saw that it was good and he took Lucifer from GodsHolyMountain and set him over the Garden of Eden as a covering cherub to watch over and enjoy all that was of God. As Lucifer was set in the garden iniquity was soon found in him as he defiled Gods sanctuary through pride in his own beauty and wisdom as he wanted all that was of Gods here on earth to be his own and iniquity soon filled his heart as he tried to make his throne above the angels and be God. Because iniquity was found in him God cast him and those angels who chose to follow him out of his holy mountain and cast them all down to earth to be trampled of all nations. The only reference in scripture that denotes there being one third of the angels falling with Satan is in Revelation 12:9. (Ref: Read Ezekiel Chapter 28 Prince of Tyrus)
Revelation 12:4 And his tail drew the third part of the stars of heaven, and did cast them to the earth: and the dragon stood before the woman which was ready to be delivered, for to devour her child as soon as it was born.
Ezekiel 28:13 Thou hast been in Eden the garden of God; 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.
Ezekiel 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 28:15 Thou wast perfect in thy ways from the day that thou wast created, till iniquity was found in thee.
Ezekiel 28:16 By the multitude of thy merchandise they have filled the midst of thee with violence, and thou hast sinned: therefore I will cast thee as profane out of the mountain of God: and I will destroy thee, O covering cherub, from the midst of the stones of fire.
Ezekiel 28:17 Thine heart was lifted up because of thy beauty, thou hast corrupted thy wisdom by reason of thy brightness: I will cast thee to the ground, I will lay thee before kings, that they may behold thee.
Isaiah 14:12 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!
Isaiah 14:13 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:
Isaiah 14:14 I will ascend above the heights of the clouds; I will be like the most High.
Isaiah 14:15 Yet thou shalt be brought down to hell, to the sides of the pit.
Satan was cast down to the earth and became the ruler of iniquity over it before the creation of man which is why he had the power and right to give the kingdoms of the world over to Christ. Satan corrupted the nations until there was no righteous person found except Noah. Even after Satan was cast down to the ground he still vowed that he would ascend back into heaven and take his place on the throne and be like the most high.
Remember, Satan is a spirit and not flesh and blood so when he was cut down to the ground it was not literal, but symbolic that his so called kingdom would be that of a lesser magnitude than Gods kingdom. Satan is the total opposite of the love that God represents so whatever good that God does Satan does the opposite. For instance we know that the greatest commandment of God is to love and our commission is to take his word out into the world. Our service is to feed the hungry, cloth the naked, visit the sick and those in prison. Prison can be a literal prison or those who are imprisoned in mind by their own devastations of life circumstances that engulfs them. Since Satan is known as the god of this world and the prince of the powers of the air he has access to the throne of God to accuse the saints of God as Jesus makes intercession for them. Satan has no authority in heaven as he lost that privilege, but was cut down to earth and through his hatred and anger of God now uses his deceit to separate man from God by stealing the word of God from them thus stealing their faith in God.
2Corinthians 4:4 in whom the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them.
Ephesians 2:2 Wherein in time past ye walked according to the course of this world, according to the prince of the power of the air, the spirit that now worketh in the children of disobedience:
Revelation 12:10 And I heard a loud voice saying in heaven, Now is come salvation, and strength, and the kingdom of our God, and the power of his Christ: for the accuser of our brethren is cast down, which accused them before our God day and night