At the end of chapter 20 we saw that those who were not found in the book of life were cast into the lake of fire (along with the devil and the beasts). With all the evil ones and the poor people who were deceived by them out of the way, the focus now turns to the saved.
John sees a new heavens and new earth (the first had passed away) and describes it in chapters 21 and 22.
These chapters have a different feel. There are warnings about disobedience to those reading, but as far as the narrative, Satan and his allies and followers have all been dealt with – they are no more threat. We enjoy the peace described in Revelation 21:27 But there shall by no means enter it anything that defiles, or causes an abomination or a lie, but only those who are written in the Lamb’s Book of Life. This is well summed up in 21:4 also: “And God will wipe away every tear from their eyes; there shall be no more death, nor sorrow, nor crying. There shall be no more pain, for the former things have passed away.”
Its like a bride adorned for her husband. This reminds us of the announcement in 19:7-8, “Let us be glad and rejoice and give Him glory, for the marriage of the Lamb has come, and His wife has made herself ready.” And to her it was granted to be arrayed in fine linen, clean and bright, for the fine linen is the righteous acts of the saints.”
Why is a marriage a fitting analogy for heaven?
He then sees heaven as a beautiful city (verse 9 through the end of the chapter). What about the description of the city most excites you?