Revelation17chapter 17

One of the seven bowl angels takes John aside and shows him a woman dressed in purple and scarlet, covered in gold and jewels and pearls, holding a golden cup. Purple and scarlet dye were among the most expensive goods in the Roman world, and this is the wardrobe of extreme wealth.

The text then does something rare: it interprets itself. The seven heads are seven mountains on which the woman sits. Rome was universally known as the city on seven hills — the Romans celebrated it themselves, and a coin issued under Vespasian shows the goddess Roma seated on seven hills.

The heads are also called seven kings, and readers have counted emperors from that line since the second century without reaching agreement on where the count starts. The angel's own summary is that the beast "was, and is not, and yet is," which is deliberately slippery.

The ten horns are ten kings who receive authority with the beast for a short time and give their power to him — a picture of client kingdoms, which is exactly how Rome ran its edges, through local rulers who kept their thrones by cooperating.

Then the twist: the horns and the beast turn on the woman, strip her, and burn her. The system devours its own showpiece. And the last line names her outright as the great city that reigns over the kings of the earth.