John 7:17 in the World English Bible
If anyone desires to do his will, he will know about the teaching, whether it is from God or if I am speaking from myself.
Context
16 Jesus answered them, and said, My doctrine is not mine, but his that sent me.
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.
18 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.