John 10:20

And many of them said, "He has a demon and is mad. Why do you listen to Him?"

Surrounding context

10:19 Therefore there was a division again among the Jews because of these sayings.

10:20 And many of them said, "He has a demon and is mad. Why do you listen to Him?"

10:21 Others said, "These are not the words of one who has a demon. Can a demon open the eyes of the blind?"

Translation and sources