John 10:20
"And many of them said, He hath a devil, and is mad; why hear ye him?"
Cross References (ranked by relevance)
The people answered and said, Thou hast a devil: who goeth about to kill thee?
And when his friends heard of it, they went out to lay hold on him: for they said, He is beside himself.
Then said the Jews unto him, Now we know that thou hast a devil. Abraham is dead, and the prophets; and thou sayest, If a man keep my saying, he shall never taste of death.
And as he thus spake for himself, Festus said with a loud voice, Paul, thou art beside thyself; much learning doth make thee mad.
He was taken from prison and from judgment: and who shall declare his generation? for he was cut off out of the land of the living: for the transgression of my people was he stricken.
But the Pharisees said, He casteth out devils through the prince of the devils.
It is enough for the disciple that he be as his master, and the servant as his lord. If they have called the master of the house Beelzebub, how much more shall they call them of his household?