Commentaries:
Robertson's Word Pictures (NT)
Shall be night no more (nuc ouk estai eti). As in Revelation 21:25.
They need (exousin xreian). Present active indicative, "They have need," though A has ecousin (shall have), future like estai. Here again there is repetition of part of Revelation 21:23, but for the purpose of showing the delightsomeness of the New Jerusalem with no need of lamp or sun (change to fwv with hliou instead of fwtov, "they have no light of sun").
Shall give them light (fwtisei). Future active of fwtizw, while aorist efwtisen in Revelation 21:23.
They shall reign (basileusousin). Future active of basileuw. Reign eternally in contrast with the limited millennial reign of Revelation 20:4, Revelation 20:6. This glorious eternal reign with Christ occurs repeatedly in the book (Revelation 1:6; Revelation 3:21; Revelation 5:10) as in Luke 22:30. Christ's Kingdom is spiritual (John 18:36 f.). "The visions of the Apocalypse are now ended; they have reached their climax in the New Jerusalem" (Swete). Now John gives the parting utterances of some of the speakers, and it is not always clear who is speaking.
Other Robertson's Word Pictures (NT) entries containing Revelation 22:5:
John 1:9
Revelation 3:21
Revelation 18:1
Revelation 18:23
Revelation 20:6
Revelation 22:17
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