Revelation 12:3, 7-9, 12

Consider this: another astonishing miracle-sign appeared in heaven! I saw a huge, fiery-red dragon with ten horns and seven heads, each wearing a royal crown. He was wearing seven royal crowns.

Then a terrible war broke out in heaven. Michael and his angels fought against the great dragon. The dragon and his angels fought back. But the dragon did not have the power to win and they could not regain their place in heaven. So the great dragon was thrown down once and for all. He was the serpent, the ancient snake called the devil, and Satan, who deceives the whole earth. He was cast down into the earth and his angels along with him.

So rejoice, you heavens, and every heavenly being! But woe to the earth and the sea, for the devil has come down to you with great fury, because he knows his time is short.”