Satan began as God's courtroom prosecutor, not his cosmic enemy
In the oldest Hebrew texts, 'the satan' is a title, not a name: an accuser who works for God, testing Job's loyalty with permission from above. Horns, hooves and pitchfork came more than a thousand years later, borrowed from pagan gods such as Pan. Genesis never even says the serpent was Satan.
The Hebrew noun satan means accuser or adversary, from a verb meaning to obstruct. Early books use it for ordinary human opponents. With the definite article, ha-satan, it appears 17 times in the Masoretic Text, fourteen in Job and three in Zechariah. Its first use for a supernatural being is in Numbers, where the angel of Yahweh blocks Balaam's road as a satan. In Job, possibly written around the Babylonian captivity, the satan is one of the 'sons of God' who reports from roaming the earth and wagers that Job's faith will crack under hardship. Job holds firm, and the accuser is implied to be shamed.
The figure darkened between the Testaments, perhaps influenced by the Zoroastrian evil spirit Angra Mainyu, becoming a malicious power set against God. The Book of Jubilees calls him Mastema and gives him command of fallen spirits. In the Gospels he tempts Jesus in the desert; in Revelation he is a great red dragon thrown down by the archangel Michael. The Quran's Iblis, made of fire, is expelled for refusing to bow to Adam and whispers evil suggestions into human minds. Judaism, by contrast, often treats him as a metaphor for the evil inclination.
His fortunes rose and fell. Medieval Christians gave him little theological weight and used him for comic relief in mystery plays. Fear of witchcraft and possession in the early modern period made him far more menacing, while Enlightenment critics such as Voltaire mocked the belief; it has persisted anyway, especially in the Americas.
The Bible never describes his looks. Since the ninth century, Christian art has blended features from Pan, Poseidon and the Egyptian god Bes into the familiar horned image. Writers kept reinventing him, from Dante's Inferno to Milton's Paradise Lost, and some modern groups flip the script entirely: LaVeyan Satanists treat him as a symbol of liberty.
Source: Satan
