John 8:25-28

Then said they unto him, Who art thou? And Jesus saith unto them, Even the same that I said unto you from the beginning. I have many things to say and to judge of you: but he that sent me is true; and I speak to the world those things which I have heard of him. They understood not that he spake to them of the Father. Then said Jesus unto them, When ye have lifted up the Son of man, then shall ye know that I am he, and that I do nothing of myself; but as my Father hath taught me, I speak these things.