Revelation 21:23

For the glory of God will illuminate it. For we will enjoy the same light in the homeland by which we are now guided while walking on the way. By this same light, being shaped, we discern between good and evil, by which then, being …

And the city had no need of the sun nor the moon to shine in it. Because the Church is not governed by the light or elements of the world, but is led by Christ, the eternal sun, through the darkness of the world.

And the city had no need of the sun, neither of the moon to shine in it,.... Which may be understood either literally of these two luminaries, which all earthly cities need; and which, though they may be in being in the new heavens, yet will not have the use with respect to this city they now have.

And the city had no need of the sun, neither of the moon, to shine in it - This imagery seems to be derived from Isa 9:19-20. See notes on those verses. No language could give a more striking or beautiful representation of the heavenly state than what is here employed. For the glory of God did lighten it - By the visible splendor of his glory. See the notes on Rev 21:11. That supplied the place of the sun and the moon. And the Lamb is the light thereof - The Son of God; the Messiah.

But A, B, and ANDREAS read, "(shine) on it," or literally, "for her." the light--Greek, "the lamp" (Isa 60:19, 20). The direct light of God and the Lamb shall make the saints independent of God's creatures, the sun and moon, for light.

To the lover of Jesus it is very pleasant to observe how the Lord Jesus Christ has always stood foremost in Glory from before the foundation of the world and will do so as long as eternity shall last. If we look back by faith to the time of the creation, we find our Lord with His Father as one brought up with Him. "When there were no depths, I was brought forth, when there were no fountains abounding with water. While as yet He had not made the earth, nor the fields, nor the highest part of the dust of the world. When He prepared the heavens, I was there: when He set a compass upon the face of the depth: when He established the clouds above: when He strengthened the fountains of the deep." He was that Wisdom who was never absent from the Father's counsels in the great work of creation, whether it was the birth of angels or the making of worlds of men. One of the first events ever recorded in Scripture history is, "When He brings in the First-Begotten into the world, He says, let all the angels of God worship Him." Such words were never spoken of any creature, but only of Him who is co-equal and co-eternal with the Father. He is glorious forever—the First-Born of every creature, the Head of the household of God—the express Image of His Person and the fullness of His Glory. In the earliest periods of which we possess any knowledge, Jesus Christ stood exalted far above all principalities and powers and every name that is named. When human history dawns and the history of God's Church commences, you still find Christ preeminent. All the types of the early Church are only to be opened up by Him as the key.

To the lover of Jesus it is very pleasant to observe how the Lord Jesus Christ has always stood foremost in Glory from before the foundation of the world and will do so as long as eternity shall last. If we look back by faith to the time of the creation, we find our Lord with His Father as one brought up with Him. "When there were no depths, I was brought forth, when there were no fountains abounding with water.

No need of the sun - This is also one of the traditions of the ancient Jews, that “in the world to come the Israelites shall have no need of the sun by day, nor the moon by night.” - Yalcut Rubeni, fol. 7, 3. God’s light shines in this city, and in the Lamb that light is concentrated, and from him everywhere diffused.