Revelation 11:7-9
And when they shall have finished their testimony, the savage beast which ascends out of the abyss, shall make war against them, and shall conquer them, and kill them.
Revelation 12:3-4
And there appeared another sign in heaven; and, behold! a great fiery dragon, having seven heads and ten horns, and upon his heads seven crowns.
Revelation 13:5-18
And there was given to it a mouth speaking great things, and defamation: and there was given to it power to practice forty-two months-
Revelation 17:6
And I saw the woman drunk with the blood of the saints, and with the blood of the martyrs of Jesus: and when I saw her, I wondered with great amazement.
Revelation 17:14
These shall make war with the Lamb; and the Lamb shall overcome them: for he is the Lord of lords, and King of kings; and those that are with him, are called, and chosen, and faithful.
Revelation 19:19
And I saw the beast, and the kings of the earth, and their armies gathered together to make war with him who sits upon the white horse, and with his army.