10 standing far away for the fear of her torment, saying, ‘Woe, woe, the great city, Babylon, the strong city! For your judgment has come in one hour.’
standing at a distance – as indicated in Rev 17:16, they will not want anything more to do with the harlot, because they can see that God has judged her. Most of the kings, the European peoples, became a part of Protestant denominations after the Reformation.
in one hour – as discussed at Rev 17:12, the ten kings reigned with the beast for one hour of the 12 hour human clock of 6,000 years. From the East-West Schism of 1054, the Ten Kings reigned with Beast for about 500 years.