The Nations

Revelation 21:24-26 (NASB Strong’s (Lockman))

24 The nations will walk by its light, and the kings of the earth will bring their glory into it. 25 In the daytime (for there will be no night there) its gates will never be closed; 26 and they will bring the glory and the honor of the nations into it;

The light of God will dwell in Jerusalem, for that is where He will be in creation. He created heaven and earth and join them in a new creation in Christ. Those outside the city will view the light from the outside. 

Those who know what they have lost will weep and gnash their teeth. Those who don’t know any better might be the same as today. They don’t know what they are missing and are quite comfortable in the dark 

Matthew 8:11-12 (NASB Strong’s (Lockman))

11 I say to you that many will come from east and west, and recline at the table with Abraham, Isaac and Jacob in the kingdom of heaven; 12 but the sons of the kingdom will be cast out into the outer darkness; in that place there will be weeping and gnashing of teeth.”

Matthew 22:11-13 (NASB Strong’s (Lockman))

11 “But when the king came in to look over the dinner guests, he saw a man there who was not dressed in wedding clothes, 12 and he *said to him, ‘Friend, how did you come in here without wedding clothes?’ And the man was speechless. 13 Then the king said to the servants, ‘Bind him hand and foot, and throw him into the outer darkness; in that place there will be weeping and gnashing of teeth.’