By accepting the importance of those mentioned by Andreas Moran, God-man is indeed King, as man and as God. But also, we must understand that the human nature of the Son is the result of "emptying" of the deity, somehow Christ as a man is emptying by the Royal office.
Human nature at the Incarnation, as well after the resurrection, is incompatible with the divine royal office. It remains a mystery, how the divine Person of the incarnate Jesus enhypostasize the human nature. Those statements which expressed by Brad D, require detailed clarification.
I think they are acceptable, but isolated, as words in a phrase, give rise to misunderstandings. The God-man is, after the Incarnation, a singularity. There is no other person who is God-man. The Father and the Spirit, certainly were not incarnated. And no man received the divine nature.
So, yes, we can say that Jesus as God-man is King. But should not mean the phrase "... pre-incarnate Son of God was King of Kings prior to the incarnation, so now is Jesus Christ of Nazareth, incarnate Son of God, King of Kings in the same way. Prior to the incarnation, certainly no flesh was King of Kings, subsequent to the incarnation, Jesus Christ is this King of Kings, having experienced a bodily resurrection and a subsequent ascension into Heaven .... " isolated from clarifying that the flesh of Jesus is similar to our human nature, but different in the way that is enhypostasized by a divine Person. This is important because the Royal office does not refer to nature, but to person. Although the kingship is inherited, it is not inherited to the body of the child, but to child as a Person. For when the child inherits the kingship as a minor, it does not hold the royal power, but remains under guardianship to adulthood (Christ as a human did not have a human person, He was enhypostasized by a royal divine Person already by His birth).
So Christ received the kingship by hereditary right, as a divine Person. Then, by taking the human nature, occurred a mystery of incompatibility. In Orthodox Church we sing the kontakion below at Christmas:
Today the Virgin gives birth to him who is above all being,
and the earth offers a cave to him whom no one can approach.
Angels with shepherds give glory,
and magi journey with a star,
for to us there has been born
a little Child, God before the ages.
“High King, what have you to do with beggars?
Maker of heaven, why have you come to those born of earth?
Did you love a cave or take pleasure in a manger?
So, I think, we should focus on the mystery of Kingship.
Edited by Lakis Papas, 09 December 2013 - 10:13 AM.