Revelation 12:7 in the World English Bible
There was war in the sky. Michael and his angels made war on the dragon. The dragon and his angels made war.
Context
6 And the woman fled into the wilderness, where she hath a place prepared of God, that they should feed her there a thousand two hundred and threescore days.
7 And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels,
8 And prevailed not; neither was their place found any more in heaven.