<p>21:24 <i>And the nations shall walk by the light of it, and the kings of the earth bring their glory into it</i>- Revelation 20 has described a period of time when the dragon is chained. It could be that during this period, a chance is given to the nations outside of the earth / land promised to Abraham, which is the focus of&nbsp;Revelation and Bible prophecy. And they respond by realizing that indeed their wealth and glory is nothing (:26), and come up to Jerusalem in repentance of their materialism, where they are invited to the Lord's table. See on 19:18. The previous kings of the earth / land had supported Babylon / the beast and were now no more. But they will be replaced by leaders who bring their glory to the Lamb rather than to Babylon.</p><p>God dwells in light (1 Tim. 6:16), and this new city will have light from God, through Christ (21:11,23;&nbsp;22:5)- because Yahweh Himself will be there.&nbsp;Perhaps some of the intensity of that light will spread out to the surrounding world, so that the nations call Jerusalem the place where Yahweh is (Ez. 48:35).</p>