Lucifer was an angel of God who wanted the glory that belonged to the Christ. His self-seeking, self-gratifying way was contrary to God and God wouldn’t have anything to do with that rebellion and unseated Lucifer.
One of the beautiful things about the ancient world recorded in the Bible is that names mean something. By this I don’t mean that each name simply has a definition, but that each name’s definition related to the person who had the name. Lucifer means “bringing light” ( http://www.behindthename.com/name/lucifer ).
When we read about a name change in the Bible, there is something significant at work. E.G. Abram who we meet at the end of Genesis 11 and the beginning of Genesis 12, his name means “exalted father,” but God changed his name to Abraham, “father of a multitude” designating the characteristic of the nation of people who would be his descendants, both by family lineage and by faith.
Lucifer is no longer his name, he does not bring light anymore (though he can appear as an angel of light to deceive; 2 Corinthians 11:14; John 8:44). Therefore his name is Devil (deceiver) and Satan (slanderer). Both are opposite to God’s character and ways and so sin was removed from God’s presence. Cast down to the earth where the he works his wiles, deceiving and tricking people in order to keep them from or draw them away from God.
Sin does not have a seat in the presence of God. But sin sits easily in the lives of people. We are easily deceived. We are taken captive by selfish desires. We are held in bondage and slavery because the devil’s temptations are anywhere from just askew to totally opposite from the truth and right.
You are a sinner. I’m sorry to be so blunt, but the truth is hard to swallow. We are all sinners because we have fallen into the devil’s trap and sinned. Whether it was a little white lie or disobeying our parents, embezzlement or lust, or any number of minor or serious wrongs, sin is sin when it comes to guilt.
Read Romans 3 and see where your standing is with God.
With Christmas 3 days away, God came into this world because of sin. The relationship that we should have with God was injured and severed because sin has no welcome in God’s house (IE, heaven, where God is). Two things always touch my heart about the Christmas account. That Jesus’s birth was so he could save people from their sins and the God entered the world, God is with us, one of Jesus’ other names, “Emmanuel, God with us,” Matthew 1:21-22.
The pure for the impure. The righteous for the unrighteous. The holy for the unholy. The just for the unjust. The Truth instead of the lie. Life to replace death for sin. Jesus came that sin would be conquered, overcome and destroyed in our lives so that we could sit in God’s presence.