Satan is a title meaning "the adversary" and is used throughout the Bible for the opponent of God. Lucifer is a Latin word meaning "light-bringer", used once in the Latin Vulgate to translate a Hebrew phrase about the king of Babylon. The identification of the two is a later interpretive tradition rather than a statement in the text.
Where each word comes from
- Satan — from Hebrew śāṭān, meaning adversary or accuser. In the Hebrew Bible it often appears with the definite article — the satan — describing a role rather than a personal name.
- Lucifer — Latin for light-bringer, the morning star, the planet Venus seen before dawn. It entered the tradition through Jerome's Vulgate translation of Isaiah 14:12.
The Isaiah passage
The verse addresses the king of Babylon, mocking a ruler who claimed to ascend to heaven and was brought down. The Hebrew phrase means something like "shining one, son of the dawn"; the Vulgate rendered it lucifer, and the King James Version carried it into English as a proper name with a capital L.
Later Christian tradition read the passage as also describing the fall of a rebellious angel, and the name attached to that figure. Modern translations generally render the phrase descriptively — "morning star" or "day star" — rather than as a name.
The other names in the tradition
- Beelzebub — from a Philistine deity name, used in the Gospels
- the devil — from Greek diabolos, slanderer, the term the Septuagint used to translate satan
- the adversary, the accuser, the tempter — descriptive titles rather than names
Lucifer outside religion
The Latin word kept its plain meaning for centuries: lucifer as the morning star appears in classical poetry with no diabolical sense, and friction matches were sold as "lucifers" in the nineteenth century — a light-bringer in the literal sense.
