Revelation 12:3, 7-9, 12

Then I witnessed in heaven another significant event. I saw a large red dragon with seven heads and ten horns, with seven crowns on his heads.

Then there was war in heaven. Michael and his angels fought against the dragon and his angels. And the dragon lost the battle, and he and his angels were forced out of heaven. This great dragon—the ancient serpent called the devil, or Satan, the one deceiving the whole world—was thrown down to the earth with all his angels.

Therefore, rejoice, O heavens! And you who live in the heavens, rejoice! But terror will come on the earth and the sea, for the devil has come down to you in great anger, knowing that he has little time.”