Revelation 12:7-9

7 And war broke out in heaven; Michael and his angels fought against the dragon. The dragon and his angels fought back,
8 but they were defeated, and there was no longer any place for them in heaven.
9 The great dragon was thrown down, that ancient serpent, who is called the Devil and Satan, the deceiver of the whole world—he was thrown down to the earth, and his angels were thrown down with him.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.