Jamieson, Fausset and Brown on John 10:19-21

19-21. There was a division ... again among the Jews for these sayings--the light and the darkness revealing themselves with increasing clearness in the separation of the teachable from the obstinately prejudiced. The one saw in Him only "a devil and a madman"; the other revolted at the thought that such words could come from one possessed, and sight be given to the blind by a demoniac; showing clearly that a deeper impression had been made upon them than their words expressed.