When an unclean spirit leaves a man, it roams through dry places in search of refreshment. As it finds none, then it says, 'I will go back to the house I left,'
in which you moved as you followed the course of this world, under the sway of the prince of the air — the spirit which is at present active within those sons of disobedience
Now as Jesus saw that a crowd was rapidly gathering, he checked the unclean spirit. "Deaf and dumb spirit," he said, "leave him, I command you, and never enter him again."