Satan | Definition, Meaning, Scriptures, Role, & Facts
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Satan, the prince of evil spirits and adversary of God in the Abrahamic religions (Judaism, Christianity, and Islam). Satan is traditionally understood as an angel who rebelled against God and was cast out of heaven before the creation of humankind. He was the catalyst for the fall of humanity.
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Satan, in the three major Abrahamic religions (Judaism, Christianity, and Islam), the prince of evil spirits and adversary of God. Satan is traditionally understood as an angel (or sometimes a jinnī in Islam) who rebelled against God and was cast out of heaven with other “fallen” angels before the creation of humankind. Ezekiel 28:14–18 and Isaiah 14:12–17 are the key Scripture passages that support this understanding, and, in the New Testament, in Luke 10:18 Jesus states that he saw Satan fall like lightning from heaven. In all three major Abrahamic religions, Satan is identified as the entity (a serpent in the Genesis account) that tempted Eve to eat the forbidden fruit in the Garden of Eden and was thus the catalyst for the fall of humankind. (For further discussion of Satan in Islam, see Iblīs. For further discussion of Satan in Jewish folklore, see Samael.)

The word Satan is the English transliteration of a Hebrew word for “adversary” in the Bible. With the definite article, the Hebrew word denotes “the adversary” par excellence, mainly in the Book of Job, where the adversary comes to the heavenly court with the “sons of God.” His task is to roam the earth (like a contemporaneous Persian official) seeking out acts or persons to be reported adversely (to the king); his function thus is the opposite of that of the “eyes of the Lord,” which roam the earth strengthening all that is good. Satan is cynical about disinterested human goodness and is permitted to test it under God’s authority and control and within the limits that God sets. In Judaism it is sometimes understood that, as adversary, Satan acts as something of a divine prosecutor for God; the two figures are not seen as antithetical.

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In the New Testament the Greek transliteration Satanas is used, and this usually appears as Satan in English translations. He is spoken of as the prince of evil spirits, the inveterate enemy of God and of Christ, who takes the guise of an angel of light. He can enter people and act through them; hence, a person can be called Satan because of his or her acts or attitude. Through his subordinate demons, Satan can take possession of human bodies, afflicting them or making them diseased. According to the visions in the Book of Revelation, when the risen Christ returns from heaven to reign on earth, Satan will be bound with a great chain for a thousand years, then be released, but almost immediately face final defeat and be cast into eternal punishment. His name, Beelzebul, used in the Gospels mainly in reference to demonic possession, comes from the name of the god of Ekron, Baalzebub (II Kings 1). He is also identified with the devil (diabolos), and this term occurs more frequently in the New Testament than Satan. In the Qurʾān the proper name Shaitan (“Satan”) is used.