Disputationes tres

From these words of St. Cyril against this misshapen and least theological similarity, we conclude: just as it would be indecent to compare a man or a Ubiquitarian theologian with a fat calf, so it is most shameful, and not without the highest insult to Christ himself and great sacrilege, to equate the personal union in Christ with the union of two tablets or boards.

IX.

For first, the naked gluing together of two tablets presupposes the pre-existence of the two boards. But the humanity of Christ did not exist beforehand and was subsequently assumed, but received its very existence and subsistence at the moment of union.

X.

Second, as it is necessary for two tablets to exist separately in fact before they are joined, it can happen that when joined they constitute nothing one, but remain two always in nature, in number, and in use; which is completely repugnant to this union, which is called hypostatic, and for that reason it was expressly condemned in Nestorius, as it pulls up the office of the Mediator from the foundations, because it divides the person of the Mediator himself into as many persons as there are natures.