Proof that Jesus of Nazareth was God on earth?

 John13:16KJV"Verily, verily, I say unto you, The servant is not greater than his lord; neither he that is sent greater than he that sent him."

John15:26KJV" But when the Comforter is come, whom I will send unto you from the Father, even the Spirit of truth, which proceedeth from the Father, he shall testify of me: "

Here (according to some) is irrefutable evidence that our Lord was in fact JEHOVAH on earth. The argument goes something like this If Jesus is indeed the sender of the Spirit(God the Holy Spirit) he must be at least as great(greater?) and thus must be God. Question begging much? The purveyors of this leap of logic don't seem to think so.

Psalm83:18KJV"That men may know that thou, whose name alone is JEHOVAH, art the most high over all the earth."

If this spirit,that is being sent, is a person who has an equal(to say nothing of a superior) then he is not the JEHOVAH of the bible and thus we have the collapse of a very important part of the argument. 

John16:7KJV"Nevertheless I tell you the truth; It is expedient for you that I go away: for if I go not away, the Comforter will not come unto you; but if I depart, I will send him unto you."

So while he is on earth he has no authority to dispatch this spirit ,whatever your view of the Spirit is, thus he is not God on earth.

John14:16KJV"And I will PRAY the Father, and he shall give you another Comforter, that he may abide with you for ever;" 

Note that even after being restored to superhuman Glory he needs to petition his God and Father for the spirit,he has no innate authority to direct the spirit ,even the scripture at John15:26 quoted by the purveyors of the argument admit that this spirit John15:26KJV".. proceedeth from the FATHER..."

Luke12:10KJV"And whosoever shall speak a word against the Son of man, it shall be forgiven him: but unto him that blasphemeth against the Holy Ghost it shall not be forgiven. "

Thus who is greater than whom here if we take the view that the Spirit is a distinct person.

John14:28KJV"Ye have heard how I said unto you, I go away, and come again unto you. If ye loved me, ye would rejoice, because I said, I go unto the Father: for my Father is greater than I. "

John10:29KJV"My Father, which gave them me, is greater than ALL(not most); and no man is able to pluck them out of my Father's hand." 

Thus the Father's Spirit gives the greatest and most irrefutable testimony of him and he will not forgive any contradiction of its plain testimony.