Whether one Divine Person can assume two human natures?

❌ Objection 1 : It would seem that one Divine Person cannot assume two human natures. For the nature assumed in the mystery of the Incarnation has no other suppositum than the suppositum of the Divine Person, as is plain from what has been stated above (Question [2], Articles [3],6). Therefore, if we suppose one Person to assume two human natures, there would be one suppositum of two natures of the same species; which would seem to imply a contradiction, for the nature of one species is only multiplied by distinct supposita.

❌ Objection 2 : Further, in this hypothesis it could not be said that the Divine Person incarnate was one man, seeing that He would not have one human nature; neither could it be said that there were several, for several men have distinct supposita, whereas in this case there would be only one suppositum. Therefore the aforesaid hypothesis is impossible.

❌ Objection 3 : Further, in the mystery of the Incarnation the whole Divine Nature is united to the whole nature assumed, i.e. to every part of it, for Christ is "perfect God and perfect man, complete God and complete man," as Damascene says (De Fide Orth. iii, 7). But two human natures cannot be wholly united together, inasmuch as the soul of one would be united to the body of the other; and, again, two bodies would be together, which would give rise to confusion of natures. Therefore it is not possibly for one Divine Person to assume two human natures.