5 Bible Verses about Unclean Spirits

"When a foul spirit goes out of a man, it roams through deserts in search of rest and can find none.

And he came down to Capernaum, a town in Galilee. And he taught them on the Sabbath, and they were amazed at his teaching, for he spoke with authority. There was a man in the synagogue who was possessed by the spirit of a foul demon and he cried out loudly, read more.
"Ha! What do you want of us, Jesus, you Nazarene? Have you come to destroy us? I know who you are! You are God's Holy One!" Jesus reproved him and said, "Silence! Get out of him!" And the demon threw the man down in the midst of them, and came out of him, without doing him any harm. And they were all amazed and said to one another, "What is the meaning of this teaching? For he gives orders authoritatively and effectually to the foul spirits, and they come out."

So Jesus retired with his disciples to the seashore, and a great many people from Galilee followed him, and from Judea and Jerusalem and Idumea and from the other side of the Jordan and from the neighborhood of Tyre and Sidon a great many who had heard of the things he was doing came to him. He told his disciples to have a boat always ready for his use, to prevent his being crushed by the crowd. read more.
For he cured so many people that all who had any ailments pressed up to him to touch him. And whenever the foul spirits saw him, they fell down before him and screamed out, "You are the Son of God!"