Catechesis

This personal union does not exist nor can be thought of without such a true communion of the natures. Nor just the mere human nature—whose property it is to suffer and die—has suffered for the sins of the world, but the Son of God Himself truly suffered. However, He suffered according to the received human nature. In accordance with our simple Christian faith, He truly died, although the divine nature can neither suffer nor die.—FC SD VIII:20