what does the bible say?
Yes, Satan exists, and the Old Testament reveals him as the enemy of God and humanity (Genesis 3:15). Originally created as an angel named Lucifer, he rebelled against God out of pride and was cast out of heaven (Isaiah 14:12–17; Ezekiel 28:11–17). In the Garden of Eden, Satan deceived Adam and Eve, leading them into sin, and he continues to use lies to oppose God’s truth (Genesis 3:1–6). Throughout Scripture, Satan is described as the accuser and adversary, working to turn people away from God (Revelation 12:10; Job 1:6–12). Though his opposition persists, Jesus's victory on the cross guarantees Satan's eventual defeat in the final judgment (Revelation 19:20; 20:7–10).