Rev 12:7-12
And now war broke out in heaven, when Michael with his angels attacked the dragon. The dragon fought back with his angels, but they were defeated and driven out of heaven. The great dragon, the primeval serpent, known as the devil or Satan, who had led all the world astray, was hurled down to the earth and his angels were hurled down with him. Then I heard a voice shout from heaven, ‘Salvation and power and empire for ever have been won by our God, and all authority for his Christ, now that the accuser, who accused our brothers day and night before our God, has been brought down.