Revelation 21:25

And the gates of it shall in no wise be shut in the day, for there will be no night there;

Revelation 22:5

And there shall be no more night; and they have no need of the light of a candle, nor the light of the sun; because the Lord God shines on them: and they shall reign until the ages of the ages.

Revelation 21:23

And the city has no need of the sun, nor of the moon, that they may light it:

Treasury of Scripture Knowledge

Summary

And the gates of it shall not be shut at all by day: for there shall be no night there.

Bible References

For

Revelation 22:5
And there shall be no more night; and they have no need of the light of a candle, nor the light of the sun; because the Lord God shines on them: and they shall reign until the ages of the ages.