The Greek word îris, represented by G2463, is the term for a rainbow. It appears only 2 times in 2 unique verses in the Bible. The word's base definition suggests it may be derived from ἐρέω, as a symbol of a messenger.
In scripture, G2463 is used exclusively in the book of Revelation to describe heavenly visions. In one instance, a rainbow is seen "round about the throne" of God, with an appearance like an emerald stone Revelation 4:3. The term is also used to describe a feature of a "mighty angel" who descends from heaven, with a rainbow upon his head, a face like the sun, and feet like pillars of fire Revelation 10:1.
Several related words appear in the context of these heavenly visions, adding to the depiction of divine glory:
- G32 ángelos (a messenger; especially an "angel"): The rainbow is placed upon the head of a mighty angel descending from heaven Revelation 10:1. Angels are also described as accompanying the Son of man in his glory Matthew 16:27.
- G3772 ouranós (the sky; by extension, heaven): The angel with the rainbow descends from heaven, the abode of God Revelation 10:1. It is the source of divine authority and the place where God's will is done Matthew 6:10.
- G4664 smarágdinos (consisting of emerald): The rainbow around the throne is described as being like an emerald in appearance, connecting it to the imagery of precious gems Revelation 4:3.
- G2393 íaspis ("jasper", a gem): The one sitting on the throne surrounded by the rainbow has the appearance of a jasper stone, a gem that is also the first foundation of the wall of the city (Revelation 4:3, Revelation 21:19).
The theological weight of G2463 is tied to its specific placement in divine visions.
- Emblem of Divine Majesty: The presence of the rainbow "round about the throne" directly associates it with the splendor and presence of God Himself, who is described with the brilliance of a jasper and sardine stone Revelation 4:3.
- Sign of Heavenly Authority: When worn by a mighty angel, the rainbow serves as a mark of a celestial messenger possessing great power, who is clothed with a cloud and has a face like the sun Revelation 10:1.
- Component of Theophany: The rainbow appears as part of a vision of divine glory, alongside other powerful symbols like fire, clouds, and brilliant light, underscoring its role as a visual manifestation of the celestial realm Revelation 10:1.
In summary, G2463 is a specific and powerful term used exclusively in visionary contexts within Revelation. It is not merely a natural phenomenon but a symbol of God's majesty and the authority of His heavenly messengers. Its appearance around the throne and upon a mighty angel solidifies its connection to the glory, power, and beauty of the divine realm.