Revelation 12:7-9 New Revised Standard Version (NRSV)
Michael Defeats the Dragon
7 And war broke out in heaven; Michael and his angels fought against the dragon. The dragon and his angels fought back, 8 but they were defeated, and there was no longer any place for them in heaven. 9 The great dragon was thrown down, that ancient serpent, who is called the Devil and Satan, the deceiver of the whole world—he was thrown down to the earth, and his angels were thrown down with him.