Revelation 12:7–10 (ASV)
7And there was war in heaven: Michael and his angels going forth to war with the dragon; and the dragon warred and his angels; 8and they prevailed not, neither was their place found any more in heaven. 9And the great dragon was cast down, the old serpent, he that is called the Devil and Satan, the deceiver of the whole world; he was cast down to the earth, and his angels were cast down with him. 10And I heard a great voice in heaven, saying,
Now is come the salvation, and the power, and the kingdom of our God, and the authority of his Christ: for the accuser of our brethren is cast down, who accuseth them before our God day and night.