Rev. 13:2-8 And the beast which I saw was like unto a leopard, and his feet were as the feet of a bear, and his mouth as the mouth of a lion: and the dragon gave him his power, and his throne, and great authority. 3 And I saw one of his heads as though it had been smitten unto death; and his death-stroke was healed: and the whole earth wondered after the beast; 4 and they worshipped the dragon, because he gave his authority unto the beast; and they worshipped the beast, saying, Who is like unto the beast? And who is able to war with him? 5 and there was given to him a mouth speaking great things and blasphemies; and there was given to him authority to continue forty and two months.6 And he opened his mouth for blasphemies against God, to blaspheme his name, and his tabernacle, even them that dwell in the heaven. 7 And it was given unto him to make war with the saints, and to overcome them: and there was given to him authority over every tribe, people, tongue, and nation. 8 And all that dwell on the earth shall worship him, everyone whose name hath not been written from the foundation of the world in the book of life of the Lamb that hath been slain.)
(Revelation 16:14): For they are the spirits of devils, working miracles, which go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty.
“… I beheld Satan, as lightening, fall from heaven.” (Luke 10:18)
“And have no fellowship with the unfruitful works of darkness, but rather reprove them.” (Ephesians 5:11)
Rev 13:16 And he causeth all, the small and the great, and the rich and the poor, and the free and the bond, that there be given them a mark on their right hand, or upon their forehead; 17 and that no man should be able to buy or to sell, save he that hath the mark, even the name of the beast or the number of his name. 18 Here is wisdom. He that hath understanding, let him count the number of the beast; for it is the number of a man: and his number is Six hundred and sixty and six.)