Do you use any commentaries along with your Bible reading? And perhaps a concordance or two?
Any way here you go
Question: “Is Lucifer Satan? Does the fall of Lucifer describe Satan?”
Answer: There is no verse or passage in the Bible that says, “Lucifer is Satan,” but an examination of several passages reveals that Lucifer can be none other than Satan. The fall of Lucifer described in Isaiah 14:12 is likely the same that Jesus referred to in Luke 10:18: “I saw Satan fall like lightning from heaven.” A similar fall is depicted in Ezekiel 28.
Isaiah 14:12-18 describes the fall from heaven of one called “Lucifer” in the King James Version and the “morning star, son of the dawn” in the NIV. Other Bible versions call him “Day Star,” “shining star,” and “the bright morning star.” These variations are due to differences of opinion about how to translate the Hebrew word helel. Regardless, the description of the one referred to shows us it can be none other than Satan. We know from Jesus’ own words in Luke 10 that Satan fell from heaven. So, when Isaiah refers to Lucifer or helel being cast down to earth (Isaiah 14:12), it can be none other than Satan. The reason for his fall is found in verses 13 and 14: “You said in your heart, ‘I will ascend to heaven; I will raise my throne above the stars of God; I will sit enthroned on the mount of assembly, on the utmost heights of the sacred mountain. I will ascend above the tops of the clouds; I will make myself like the Most High.’” This has always been Satan’s desire – to be God, and it is the very temptation he used in the Garden of Eden to get Eve to disobey God: “You shall be as God” (Genesis 3:5).
I don't believe that God broke the symmetry inherent in His creation of the universe to create legions of lesser "gods", which despite arguments for how this contributes to monotheism, I just cannot see it. Despite the plethora of reasons to believe in God, there is not a single scintilla of evidence for Satan's activities anywhere in the universe until human beings abstract the concept of evil from their own minds, leaving aside the concept of personal responsibility as opposed to "The devil made me do it". Good and evil are real, but it took human beings to able to distinguish the two.