ἄστρον
a star
Definition
The Greek word ἄστρον refers to a star, a celestial body visible in the night sky. In the New Testament, it is used both literally for physical stars (Acts 27:20, Hebrews 11:12) and metaphorically for celestial objects of religious worship (Acts 7:43). In Luke 21:25, it appears in an eschatological context, where signs in the stars are part of the cosmic disturbances signaling the end times.
Biblical Usage
The word is used four times in the New Testament across various contexts. In Acts 27:20, it describes the literal stars, unseen during a severe storm, emphasizing navigational disorientation. Hebrews 11:12 uses it literally in the Abrahamic promise of descendants as numerous as the stars. In Acts 7:43, it refers to the 'star of your god Rephan,' denoting pagan astral deities. Luke 21:25 employs it apocalyptically, where signs in the stars point to the coming of the Son of Man.
Etymology
Derived from the root *ster-, meaning 'star,' which is common in Indo-European languages (cf. Latin 'stella,' English 'star'). It is not derived from ἀ- (a negative prefix) plus 'stron'; that is a folk etymology. The word is a straightforward noun for a celestial luminary.
Semantic Range
Ἄστρον carries theological weight in eschatology and idolatry. In Luke 21:25, stars are part of the cosmic signs heralding Christ's return, linking creation to redemption. In Acts 7:43, it critiques idolatry, contrasting the worship of created celestial bodies with the Creator. Understanding this Greek term enriches reading by highlighting the biblical contrast between the true God and false astral worship, and the use of creation to signal divine action.
In the ancient Greco-Roman and Near Eastern world, stars were often associated with deities, fate (astrology), and navigation. The New Testament usage, especially in Acts 7:43, directly confronts this pagan astral worship, common in the surrounding cultures. The apocalyptic imagery in Luke draws on Old Testament motifs (e.g., Isaiah 13:10) familiar to Jewish audiences, where celestial disturbances signify God's dramatic intervention in history.
ἀστήρ (astēr, G792) — A more common synonym for 'star,' often used interchangeably, but ἄστρον can sometimes carry a slightly more technical or collective sense.
Word Details
How this works
Definitions are from the Dodson Greek-English Lexicon, a concise public-domain resource suitable for introductory word study. Brief glosses are supplemented by STEPBible TBESG data (CC BY 4.0). For advanced research, standard scholarly references include BDAG (Danker, 3rd ed.) and LSJ.
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