8 The beast which thou sawest was, and is not, and is about to come up out of the abyss and go into destruction: and they who dwell on the earth, whose names are not written from the founding of the world in the book of life, shall wonder, seeing the beast, that it was, and is not, and shall be present. 9 Here is the mind that has wisdom: The seven heads are seven mountains, whereon the woman sits. 10 And there are seven kings: five have fallen, one is, the other has not yet come; and when he comes he must remain [only] a little while. 11 And the beast that was and is not, he also is an eighth, and is of the seven, and goes into destruction. 12 And the ten horns which thou sawest are ten kings, which have not yet received a kingdom, but receive authority as kings one hour with the beast. 13 These have one mind, and give their power and authority to the beast.

14 These shall make war with the Lamb, and the Lamb shall overcome them; for he is Lord of lords and King of kings: and they [that are] with him called, and chosen, and faithful. 15 And he says to me, The waters which thou sawest, where the harlot sits, are peoples and multitudes and nations and tongues. 16 And the ten horns which thou sawest, and the beast, these shall hate the harlot, and shall make her desolate and naked, and shall eat her flesh, and shall burn her with fire; 17 for God has given to their hearts to do his mind, and to act with one mind, and to give their kingdom to the beast until the words of God shall be fulfilled. 18 And the woman which thou sawest is the great city, which has kingship over the kings of the earth.

Matthew Henry's Commentary on Revelation 17:8-24

Commentary on Revelation 17:7-14

(Read Revelation 17:7-14)

The beast on which the woman sat was, and is not, and yet is. It was a seat of idolatry and persecution, and is not; not in the ancient form, which was pagan: yet it is; it is truly the seat of idolatry and tyranny, though of another sort and form. It would deceive into stupid and blind submission all the inhabitants of the earth within its influence, except the remnant of the elect. This beast was seven heads, seven mountains, the seven hills on which Rome stands; and seven kings, seven sorts of government. Five were gone by when this prophecy was written; one was then in being; the other was yet to come. This beast, directed by the papacy, makes an eighth governor, and sets up idolatry again. It had ten horns, which are said to be ten kings who had as yet no kingdoms; they should not rise up till the Roman empire was broken; but should for a time be very zealous in her interest. Christ must reign till all enemies be put under his feet. The reason of the victory is, that he is the King of kings, and Lord of lords. He has supreme dominion and power over all things; all the powers of earth and hell are subject to his control. His followers are called to this warfare, are fitted for it, and will be faithful in it.

Commentary on Revelation 17:15-18

(Read Revelation 17:15-18)

God so ruled the hearts of these kings, by his power over them, and by his providence, that they did those things, without intending it, which he purposed and foretold. They shall see their folly, and how they have been bewitched and enslaved by the harlot, and be made instruments in her destruction. She was that great city which reigned over the kings of the earth, when John had this vision; and every one knows Rome to be that city. Believers will be received to the glory of the Lord, when wicked men will be destroyed in a most awful manner; their joining together in sin, will be turned to hatred and rage, and they will eagerly assist in tormenting each other. But the Lord's portion is his people; his counsel shall stand, and he will do all his pleasure, to his glory, and the happiness of all his servants.