Revelation 17:12-13

17:12 The ten horns that you saw are ten kings who have not yet received a kingdom, but will receive ruling authority as kings with the beast for one hour. 17:13 These kings have a single intent, and they will give their power and authority to the beast.

Revelation 17:17

17:17 For God has put into their minds to carry out his purpose by making a decision to give their royal power to the beast until the words of God are fulfilled.