John the Apostle
Revelation 17:2ESV·traditional attribution

with whom the kings of the earth have committed sexual immorality, and with the wine of whose sexual immorality the dwellers on earth have become drunk.”

Matthew Henry Presbyterian @wholebiblehenry

Here we have a new vision, not as to the matter of it, for that is contemporary with what came under the three last vials; but as to the manner of description, etc. Observe, 1. The invitation given to the apostle to take a view of what was here to be represented: Come hither, and I will show thee the judgment of the great whore, etc., Rev 17:1.

Commenting on Revelation 17:1-6

John Gill Reformed Baptist @doctorgill

With whom the kings of the earth have committed fornication,.... These are the ten kings, who being of the same mind, and of one religion, the Popish religion, gave their power, strength, and kingdom to the beast, Rev 17:12 and have been enticed by the whore of Rome to commit spiritual fornication with her; that is, idolatry, to worship, as that church enjoins, idols of...

Albert Barnes Presbyterian @notesbybarnes

Verse 2. With whom the kings of the earth have committed fornication. Spiritual adultery. The meaning is, that Papal Rome, unfaithful to God, and idolatrous and corrupt, had seduced the rulers of the earth, and led them into the same kind of unfaithfulness, idolatry, and corruption. Compare . How true this is in history need not be stated.