And they advanced over the breadth of the earth and encircled the camp of the holy ones and the beloved city.”​—Revelation 20:7-9a.

A camp is outside a city; therefore, “the camp of the holy ones” must represent those on earth outside the heavenly location of New Jerusalem who loyally support Jehovah’s governmental arrangement. When the rebels under Satan attack those faithful ones, the Lord Jesus regards it as an assault on him. (Matthew 25:40, 45) “Those nations” will try to wipe out all that the heavenly New Jerusalem has accomplished in making earth a paradise. So in attacking “the camp of the holy ones,” they are also attacking “the beloved city.”