That reminded me of the following from Revelation.
7 And there was a great battle in heaven: Michael and his angels fought with the dragon, and the dragon fought, and his angels.
8 And they prevailed not: neither was their place found any more in heaven.
9 And that great dragon was cast out, that old serpent, who is called the devil and Satan, who seduceth the whole world. And he was cast unto the earth: and his angels were thrown down with him.
10 And I heard a loud voice in heaven, saying: Now is come salvation and strength and the kingdom of our God and the power of his Christ: because the accuser of our brethren is cast forth, who accused them before our God day and night.
11 And they overcame him by the blood of the Lamb and by the word of the testimony: and they loved not their lives unto death. (Revelation 12:7-12)