1. The New Jerusalem (9-21)
An angel carried John away in his spirit to show him the Bride of the Lamb, the New Jerusalem. The old temple in Jerusalem was said to be very brilliant and marvelous to look at. The New Jerusalem will be much more so. It will shine with the glory of God. We can only describe it in human terms, like brilliant gems. Each of the four walls will have three gates with three angels at each.
2. God is the temple and the light (22-27)
The New Jerusalem will have no temple and there will be no sun. The Lord God Almighty and Jesus the Lamb are the temple and the sun and the lamp. And the city will be glorious. All the nations of the earth will walk by the light of God. They will bow down and worship Him. There will be no need to ever shut the gates of the city, as all will be welcomed at all times, except those whose names are not written in the Book of Life, for no impure things can enter the New Jerusalem.