And I saw no temple in the city, for its temple is the Lord God the Almighty and the Lamb. And the city has no need of sun or moon to shine upon it, for the glory of God is its light, and its lamp is the Lamb. By its light shall the nations walk; and the kings of the earth shall bring their glory into it, and its gates shall never be shut by day–and there shall be no night there; they shall bring into it the glory and the honor of the nations. But nothing unclean shall enter it, nor any one who practices abomination or falsehood, but only those who are written in the Lamb’s book of life.
–Revelation 21:22-27