Ok, so we can't blend them but we also can't seperate them. If we can't blend them then they must be seperated...er... wait....they can't be seperated if they're not blended in the first place....
You see,
the Chalcedonian Description is more about what the Incarnation is not, and not about what it is. The Description tells us the boundaries of discussion on the mystery of the Incarnation, boundaries we must not cross or we fall into the heresies that were denounced. The hypostatic union is a true mystery that no one can fully understand on this side of the grave, if ever. The point of saying we cannot mix, separate, confuse, or divide means we must accept things as they have been defined and no more. In other words, the inseparable divine and human natures of the Incarnated Christ must not be mixed, separated, confused, or divided ("the four negatives of Chalcedon") and that is the limit of how far we can go on the matter to avoid heretical thinking.
This is a good introduction.
I wrote two sentences:
"(1)It is a doctrinal error to assume that what was known by Christ’s divine nature would also been known by His human nature. Christ’s human nature did not gain divine omniscience from the incarnation. (2)However, it is also doctrinal error to assume that the divine nature was unable to communicate information to the human nature without violating his humanity."
So just how do you suggest this was done?
How do you suppose the prophets of the OT were guided by God without God violating their humanity? Did God speaking through these men somehow change their human nature? No. This is the point of my sentence number (2) and is equally applicable to the communication between the divine nature and the human nature of Christ.
Sentence (1) is important so that we do not deify a human nature.
We must not fall into the Nestorian heresy of thinking two persons existed in the Incarnated Christ. He was one person, with two natures perfectly united into that one person, who acts according to both natures. We see in Scripture many actions that are clearly actions of one nature rather than another. Jesus gets hungry, sleeps, etc., thus manifesting His human nature. At other times, for example, Jesus knows things only God would know, thus manifesting His divine nature. By these examples we
distinguish between the two natures, but we do not
separate them.
There was only one personality in Christ.
While Christ had both a human and divine consciousness He possessed only one all-controlling self-consciousness, which was the divine person, the Second Person of the Trinity, and not the human nature. If and when determined by the Logos, Jesus Christ was omnipotent. Yet, when the divine nature withdrew, metaphorically speaking, its support from the human, the human was as any other ordinary human. Why or how the divine nature sometimes withdrew itself, metaphorically speaking, ("Who touched me?"), or did not ("Lazarus, come forth."), is not revealed in the Scriptures. And when God is silent our mouths should remain shut, too.