Satan was called, the "star of the morning, son of the dawn" or "Lucifer" before the his sin.


Isaiah 14:12 - "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!"  KJV

Isaiah 14:12 - "How you have fallen from heaven, O star of the morning, son of the dawn!" NAS

Isaiah 14:12-20

"Lucifer. The Roman name for the morning star (Heb. (helel), "the bright one"), which speedily disappears before the far greater splendor of the sun. This title is addressed to the king of Babylon, not so much as a specific human individual (like Belshazzar, for example), but as a representative or embodiment of Satan, who is regarded as the power behind the king's throne. The titanic pride and ambition expressed in verses 13,14 are out of place on any lips but Satan's."
(from The Wycliffe Bible Commentary, Electronic Database. Copyright (c) 1962 by Moody Press)