John 8:24-26 (KJV)
24 I said therefore unto you, that ye shall die in your sins: for if ye believe not that I am he, ye shall die in your sins.
25 Then said they unto him, Who art thou? And Jesus saith unto them, Even the same that I said unto you from the beginning.
26 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.