John 7:10-17

But when his brethren were gone up unto the feast, then went he also up, not publicly, but as it were in secret. The Jews therefore sought him at the feast, and said, Where is he? And there was much murmuring among the multitudes concerning him: some said, He is a good man; others said, Not so, but he leadeth the multitude astray. Yet no man spake openly of him for fear of the Jews. But when it was now the midst of the feast Jesus went up into the temple, and taught. The Jews therefore marvelled, saying, How knoweth this man letters, having never learned? Jesus therefore answered them, and said, My teaching is not mine, but his that sent me. If any man willeth to do his will, he shall know of the teaching, whether it is of God, or whether I speak from myself.