Revelation 12:7-12

7Then a war started in heaven. Michael and his angels fought against the dragon. The dragon and his army of angels fought against Michael and his angels.

8But the dragon and his army were not strong enough to win the battle. They no longer had a place for themselves in heaven.

9Michael and his angels threw the great dragon out of heaven. The dragon is called the Devil or Satan. He is the snake who has been there since long ago. He tells lies to deceive the whole world. They threw him down to the earth, together with all his angels.

10Then I heard a loud voice in heaven that said: ‘Now God has saved his people from Satan's power! God has shown his great power as King. His Messiah has authority to rule. Satan said bad things against our people. He never stopped telling our God that our brothers and sisters are guilty. But now God has thrown him out of heaven.

11Our brothers and sisters fought against him and they won. They could do this because of the death of the Lamb as a sacrifice. They continued to speak God's true message. They were also ready to die as God's servants. That is why they were able to win against Satan.

12So be happy, everyone who lives in heaven! But terrible trouble will happen to the earth and the sea. The Devil has come down to you now and he is very angry. He knows that he has only a short time to hurt people.’