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Summary
- Christian tradition treats Lucifer and Satan as the same fallen angel, but no verse of the Bible says so.
- The name Lucifer appears once in the King James Bible, in Isaiah 14:12, in a taunt against the king of Babylon.
- Lucifer is Latin for the morning star, and the Latin Bible also uses the word for Christ in 2 Peter 1:19.
- Satan is a Hebrew word meaning adversary, and the King James Bible uses it 56 times as his name.
- Tertullian read Isaiah 14 as the devil’s fall early in the third century, and Origen set it beside Jesus’ words in Luke 10:18.
- The Orthodox Church in America quotes Isaiah 14:12 in its teaching on the devil, while John Calvin held that the verse speaks only of the king of Babylon.
- Jesus calls himself “the bright and morning star” in Revelation 22:16.
Bibliography (Click to show)
- Scripture is quoted from the King James Version (public domain), via BibleGateway: Genesis 3:5; Numbers 22:22; 1 Samuel 29:4; Job 1:6–7; Isaiah 14:4, 12–16; Ezekiel 28:12–17; Zechariah 3:1; Matthew 4:3; 12:24; Luke 10:18; John 8:44; 12:31; 2 Corinthians 4:4; 6:15; 11:14; Ephesians 2:2; 1 Peter 5:8; 2 Peter 1:19; Revelation 12:9–10; 22:16. Isaiah 14:12 is also compared in the English Standard Version, the New International Version and the Latin Vulgate, and 2 Peter 1:19 in the Vulgate.
- BibleGateway, keyword search for “Lucifer” in the King James Version (one result, Isaiah 14:12).
- King James Version, 1769 standard text with Strong’s numbers, eBible.org eng-kjv2006: counts of “Satan” (56) and of the Hebrew word satan (27).
- Brown-Driver-Briggs Hebrew and English Lexicon, Strong’s H1966, helel, and Strong’s H1100, beliyyaal, Blue Letter Bible.
- Thayer’s Greek Lexicon, Strong’s G4567, satanas, G1228, diabolos and G954, Beelzeboul, Blue Letter Bible.
- Charlton T. Lewis and Charles Short, A Latin Dictionary (1879), “lucifer”, Perseus Digital Library.
- Tertullian, Against Marcion, Book V, chapter 17, trans. Peter Holmes, Ante-Nicene Fathers vol. 3 (1885), New Advent; date from the Catholic Encyclopedia, “Tertullian” (1912).
- Origen, On First Principles, Book I, chapter 5, trans. Frederick Crombie, Ante-Nicene Fathers vol. 4 (1885), New Advent; place and dates from the Catholic Encyclopedia, “Origen and Origenism” (1911).
- Anthony Maas, “Lucifer”, The Catholic Encyclopedia, vol. 9 (1910), New Advent.
- Catechism of the Catholic Church, paragraphs 391–395, the fall of the angels, Holy See.
- Orthodox Church in America, “The Devil”, The Orthodox Faith, vol. IV.
- John Calvin, Commentary on the Book of the Prophet Isaiah, vol. 1, on Isaiah 14:12, trans. William Pringle (1850), Christian Classics Ethereal Library.
- GotQuestions.org, “Is Lucifer Satan? Does the fall of Lucifer describe Satan?”, updated 21 January 2026.
- Kaufmann Kohler, “Lucifer”, The Jewish Encyclopedia (1901–1906).
- Exsultet (Easter Proclamation), Latin text of the Roman Missal with English translation, Preces Latinae.
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