17:17 {34} For God hath put in their hearts to fulfil his will, and to agree, and give their kingdom unto the beast, until the words of God shall be fulfilled.
(34) A reason rendered from the chief efficient cause, which is the providence of God, by which alone John by inversion of order affirms to have come to pass, both that the kings should execute on the harlot that which pleased God, and which he declared in the verse before: and also that by one consent and counsel, they should give their kingdom to the beast, etc. Re 17:13,14 for as these being blinded have before depended on the call of the beast that lifts up the harlot, so it is said, that afterward it shall come to pass, that they shall turn back, and shall fall away from her, when their hearts shall be turned into better state by the grace and mercy of God.
17:17 For God hath put in their hearts to fulfil his will. He used these as agents to carry out his own will. First they gave their support to the false woman, until his words were accomplished, and then turned from her and assailed her.
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.