John 9:16, 30-33

Some therefore of the Pharisees said, This man is not from God, because he keepeth not the sabbath. But others said, How can a man that is a sinner do such signs? And there was a division among them.

The man answered and said unto them, Why, herein is the marvel, that ye know not whence he is, and yet he opened mine eyes. We know that God heareth not sinners: but if any man be a worshipper of God, and do his will, him he heareth. Since the world began it was never heard that any one opened the eyes of a man born blind. If this man were not from God, he could do nothing.