John 7:17 WEB

¹⁵  The Jews therefore marveled, saying, 'How does this man know letters, having never been educated?'

¹⁶  Jesus therefore answered them, 'My teaching is not mine, but his who sent me.

¹⁷  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.

¹⁸  He who speaks from himself seeks his own glory, but he who seeks the glory of him who sent him, the same is true, and no unrighteousness is in him.

¹⁹  Didn't Moses give you the law, and yet none of you keeps the law? Why do you seek to kill me?'