The name does not mean “Satan” but actually means “light-bearer.” It occurs only once in the Old Testament, in Isaiah 14:12–15: “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! For thou hast said in thine heart, I will ascend into heaven, I will exalt my throne above the stars of God . . .
Yet thou shalt be brought down to hell” (KJV). Generations of Bible readers believed that Lucifer was Satan, a proud angel who rebelled against God, and was cast out of heaven.
In the New Testament, Paul mentions that Satan “transforms himself into an angel of light” (2 Cor. 11:14).
In speaking to Timothy of the spiritual qualifications for pastors, Paul states that he must not be “a novice, lest being puffed up with pride he fall into the same condemnation as the devil”
(1 Tim. 3:6). The early Christians believed that Satan/Lucifer had become conceited and changed from angel to devil.