Revelation 21:23-25

23Also, the city does not need the sun or the moon to shine on it. God's bright glory gives light to the city. The Lamb is the lamp that gives it light.

24People from all the world's nations will live in the city's light. The earth's rulers will bring all their valuable things into it.

25Nobody will ever shut the city's gates at the end of the day. It will always be day and there will be no night there.