'Kings of the Earth' in the Bible

Then the kings of the earth, the magnates, the generals, the rich, the strong, slaves and freemen everyone of them, hid in caves and among the rocks of the mountains,

As for the woman you have seen, she is the great City which reigns over the kings of the earth."

for all nations have drunk the wine of the passion of her vice, the kings of the earth have committed vice with her, and by the wealth of her wantonness earth's traders have grown rich."