John 9:29-33

We know that God spake unto Moses: as for this fellow, we know not from whence he is.

The man answered and said unto them, Why herein is a marvellous thing, that ye know not from whence he is, and yet he hath opened mine eyes.

Now we know that God heareth not sinners: but if any man be a worshipper of God, and doeth his will, him he heareth.

Since the world began was it not heard that any man opened the eyes of one that was born blind.

If this man were not of God, he could do nothing.