If any man be willing to do his will, he shall know of the doctrine, whether it be of God — This is a universal rule, with regard to all persons and doctrines. He that is thoroughly willing to do it, shall certainly know what the will of God is.
Related Commentaries of John 7:17
John 7:17
17 If any man will do his will, he shall know of the doctrine, whether it be of God, or whether I speak of myself.