14 Midway through the feast, Jesus went up to the temple courts and began to teach. 15 The Jews were amazed, saying, "How does this man know so much, when he has never had any formal instruction?" 16 Jesus answered them, "My teaching is not my own; it comes from him who sent me. 17 If anyone wants to do God’s will, he will know whether my teaching comes from God or whether I am speaking on my own authority. 18 He who speaks on his own authority seeks his own glory, but he who seeks the glory of the one who sent him is true, and there is no unrighteousness in him.