Revelation 12:7-9 New English Translation (NET Bible)
War in Heaven
7 Then war broke out in heaven: Michael and his angels fought against the dragon, and the dragon and his angels fought back. 8 But the dragon was not strong enough to prevail, so there was no longer any place left in heaven for him and his angels. 9 So that huge dragon—the ancient serpent, the one called the devil and Satan, who deceives the whole world—was thrown down to the earth, and his angels along with him.