John 7:17-21

If any man will do his will, he shall know of the doctrine, whether it be of God, or whether I speak of myself.

He that speaketh of himself seeketh his own glory: but he that seeketh his glory that sent him, the same is true, and no unrighteousness is in him.

Did not Moses give you the law, and yet none of you keepeth the law? Why go ye about to kill me?

The people answered and said, Thou hast a devil: who goeth about to kill thee?

Jesus answered and said unto them, I have done one work, and ye all marvel.