"I Make My Own the Voice": Theosis in the First Verse of the Gospel of John

The Transfiguration, Rubens. Via WikiCommons, CC0.

In the beginning was the Word, and the Word was with God, and the Word was God. (John 1:1)

From Kanon for the Fifth Day of Great Week, Ninth Ode, by St. Cosmas of Maiuma:

The Father begot me, creative Wisdom, before the ages;
He established me as the beginning of his ways
For the works now mystically accomplished
For though I am the uncreated Word by nature,
I make my own the voice
Of the nature I have now assumed.

As I am a man
In reality, not a mirage,
So divinized is the nature which,
By the manner of the exchange,
Is united to me.
Wherefore know that I am one Christ
Who saves that of which and in which I am.

From Ancient Christian Commentary on Scripture, NT Vol. IVa, ed. Joel C. Elowsky, 5.

Update: A friend gave me some congenial pushback on my theosis claim - he suggested that this passage is specifically about the hypostatic union (that Christ is one person with two natures) and not about theosis, per se. I initially read this as, "So divinized is the nature (human nature in general) which, / By the manner of the exchange, / Is united to me." But he may be right.