Apocalypse Revealed #667
667. "Therefore all nations shall come and worship before You." This symbolically means that people who possess the goodness of love and charity will acknowledge the Lord alone to be God.
All nations symbolize people who possess the goodness of love and charity. That this is the meaning of nations in a good sense may be seen in no. 483 above. To come and worship before Him means, symbolically, to acknowledge the Lord as God, and because there is only one God, in whom is the Trinity, and the Lord is that God, it symbolically means to acknowledge Him alone to be God.