The prophet Isaiah tells us about the fall of Satan.

"How you are fallen from heaven, O Lucifer, son of the morning! How you are cut down to the ground, you who weakened the nations! For you have said in your heart:
I will ascend into heaven,
I will exalt my throne about the stars of God;
I will also sit on the mount of the congregation on the farthest sides of the north."
Isaiah 14:12-13