St. Theodore the Studite 759-826
If uncircumscribability is characteristic of God’s essence, and circumscription is characteristic of man’s essence, but Christ is from both: then He is made known in two properties, as in two natures. How would it not be blasphemous to say that He is uncircumscribed in body as well as spirit, since if His circumscription were removed His human nature would be removed also?
If things do not have the same properties, then their essences are different. It is proper to divinity to be uncircumscribable, bodiless, and formless. It is proper to humanity to be circumscribed, tangible, and three-dimensional. If, therefore, Christ is from both essences, He must be both uncircumscribable and circumscribed. If He is only one or the other, He is of only the one essence of which He has the property — which is heretical.
If Christ cannot be circumscribed, neither can He suffer; for impassibility is equivalent to uncircumscribability. But He is able to suffer, as the Scriptures say. Therefore, He is also circumscribable.
If Christ is uncircumscribable, as you say, not only in respect to His divinity, but also in respect to His humanity, then His humanity is also divinity. For things which have the same properties also have one nature. But if He is of two natures, He is therefore also of two properties: otherwise, by the removal of circumscription, the nature of humanity would also be removed.
If Christ is uncircumscribable, how can He Himself say, “They have pierced My hands and My feet; they have numbered all My bones” (LXX Ps. 21:16-17)? For that which is uncircumscribable does not have a nature to be pierced, nor to have its bones numbered. To believe these words is to confess the circumscription.
If Christ is uncircumscribable, how can the Forerunner say, “See the Lamb of God who takes away the sin of the world?” (Jn. 1:29) For that which is seen is not uncircumscribable, not to mention that which is pointed out with the finger. But if something should be seen and pointed out, then it would be within circumscription. Therefore, Christ is circumscribable.
If Christ is not circumscribable, He is not of two natures, divinity and humanity, since He does not have the property of each. For circumscribability is characteristic of humanity. But if He is of two natures, how can He avoid having the properties of those whose natures He has?
If Christ is not circumscribed, as you say, because He would be diminished in glory, then He was not conceived in the Virgin’s womb either, because He would have endured humiliation. But if He was not only conceived without humiliation, but even born as an infant, then He is circumscribed without shame.
Maleness and femaleness are sought only in the forms of bodies, since none of the differences which characterize sexes can be recognized in bodiless beings. Therefore, if Christ were uncircumscribable, as being without a body. He would also be without the difference of sex. But He was born male, as Isaiah says, from “the prophetess” (Is. 8:18): therefore, He is circumscribed. (Third Refutation of the Iconoclasts)