Who Is This Guy?

Read this slowly and determine who said these words.

I am telling you now before it happens, so that when it does happen you will believe that I am He.

Clearly this could be no one but God.

This conclusion is obvious when you see what the Lord said in Isaiah.

Who then is like me? Let him proclaim it.
Let him declare and lay out before me…
yes, let him foretell what will come (Isa 44:7).

Only God knows the future and tells it to his people so that he demonstrates his utter incomparability.  Here he is again:

I am God, and there is none like me. 
I make known the end from the beginning,
from ancient times, what is still to come (Isa 46:9-10).

Truly amazing, this God is.  But the first quotation was from Jesus (in John 13:19).  Just who does he think he is?