1. With whom did sin originate?
“The devil has sinned from the beginning” (1 John 3:8).
“That serpent of old, called the Devil and Satan” (Revelation 12:9)
“That serpent of old, called the Devil and Satan” (Revelation 12:9)
Answer: Satan, who is also called the devil, is the originator of sin. Without the Bible, the origin of evil would remain unexplained
2. What was Satan's name before he sinned? Where was he living?
“How you are fallen from heaven, O Lucifer, son of the morning!” (Isaiah 14:12).
“[Jesus] said to them, ‘I saw Satan fall like lightning from heaven’ ” (Luke 10:18).
“You were on the holy mountain of God” (Ezekiel 28:14).
“[Jesus] said to them, ‘I saw Satan fall like lightning from heaven’ ” (Luke 10:18).
“You were on the holy mountain of God” (Ezekiel 28:14).
Answer: Satan’s name was Lucifer, and he was living in heaven. Lucifer is also symbolized by the “king of Babylon” in Isaiah 14 and as the “prince of Tyre” in Ezekiel 28
3. What was Lucifer’s origin? How does the Bible describe him?
“You were created” (Ezekiel 28:15).
“You were the seal of perfection, full of wisdom and perfect in beauty. … Every precious stone was your covering. … The workmanship of your timbrels and pipes was prepared for you on the day you were created. … You were perfect in your ways from the day you were created, till iniquity was found in you” (Ezekiel 28:12, 13, 15).
“You were the anointed cherub who covers … you were on the holy mountain of God; you walked back and forth in the midst of fiery stones” (Ezekiel 28:14).
“You were the seal of perfection, full of wisdom and perfect in beauty. … Every precious stone was your covering. … The workmanship of your timbrels and pipes was prepared for you on the day you were created. … You were perfect in your ways from the day you were created, till iniquity was found in you” (Ezekiel 28:12, 13, 15).
“You were the anointed cherub who covers … you were on the holy mountain of God; you walked back and forth in the midst of fiery stones” (Ezekiel 28:14).
Answer: Lucifer was created by God, as were all the other angels (Ephesians 3:9). Lucifer was a “covering” cherub, or angel. One covering angel stands on the left side of God’s throne and another on the right (Psalm 99:1). Lucifer was one of these highly exalted angels and was a leader. Lucifer’s beauty was flawless and breathtaking. His wisdom was perfect. His brightness was awe-inspiring. Ezekiel 28:13 seems to indicate that he was specially created to be an outstanding musician. Some scholars believe he led the angelic choir.
4. What happened in Lucifer's life that led him to sin? What sin did he commit?
“Your heart was lifted up because of your beauty; you corrupted your wisdom for the sake of your splendor” (Ezekiel 28:17).
“You have said in your heart: … ‘I will exalt my throne above the stars of God; … I will be like the Most High’ ” (Isaiah 14:13, 14).
“You have said in your heart: … ‘I will exalt my throne above the stars of God; … I will be like the Most High’ ” (Isaiah 14:13, 14).
Answer: Pride, jealousy, and discontent arose in Lucifer’s heart. He soon began to desire to unseat God and to demand that everyone worship him instead.
Note: Why is worship such an important thing? It is the key factor in the ongoing conflict between God and Satan. People were created to be happy and fulfilled when we worship only God. Not even the angels of heaven are to be worshiped (Revelation 22:8, 9). Satan selfishly sought this worship due only to God. Centuries later, when he tempted Jesus in the wilderness, worship was still his central desire and a key test (Matthew 4:8–11). Now, in these last days, as God calls upon all people to worship Him (Revelation 14:6, 7), this so infuriates Satan that he will try to force people to worship himself or else be killed (Revelation 13:15). Everybody worships someone or something: power, prestige, food, pleasure, possessions, etc. But God says, “You shall have no other gods before Me” (Exodus 20:3). Like Lucifer, we have a choice about whom we worship. If we choose to worship anyone or anything other than the Creator, He will honor our choice, but we will be counted against Him (Matthew 12:30). If anything or anyone other than God receives first place in our lives, we will end up following in Satan’s footsteps. Does God have first place in your life—or are you serving Satan? It is a sobering question, isn’t it?
The above lines have been taken from sources.
We can answer the 4th question by ourselves then you may keep what you think it is right. https://infernal-truth.blogspot.com/2020/02/those-who-represent-christianity-are.html <- click for answer (re-directs to our post: Those who represent Christianity are liars?!)