In the book of Job, the hero laments his 'satan' which means 'any adversary.' The word Lucifer meant Bearer of Light and in ancient times, was the name of Venus, the star that rose as the Morning or Evening Star. Lucifer is used only once in the book of Isaiah when he describes “Lucifer who has fallen.” Isaiah was writing about an historical and prideful Babylonian king, Tiglath Pilesar III. He used the word Lucifer to compare this arrogant king to the planet Venus, when it boldly rose before the sun in the morning.