Cross reference
Revelation 21:25
25 And the gates thereof shall in no wise be shut by day (for there shall be no night there):
Isaiah 60:11
11 Thy gates also shall be open continually; they shall not be shut day nor night; that men may bring unto thee the wealth of the nations, and their kings led captive.
Zechariah 14:7
7 but it shall be one day which is known unto Jehovah; not day, and not night; but it shall come to pass, that at evening time there shall be light.
Revelation 22:5
5 And there shall be night no more; and they need no light of lamp, neither light of sun; for the Lord God shall give them light: and they shall reign for ever and ever.
Isaiah 60:20
20 Thy sun shall no more go down, neither shall thy moon withdraw itself; for Jehovah will be thine everlasting light, and the days of thy mourning shall be ended.
Revelation 21:23
23 And the city hath no need of the sun, neither of the moon, to shine upon it: for the glory of God did lighten it, and the lamp thereof `is' the Lamb.