Gregory the Great, on Isa 53:5

“But he was wounded for our iniquities, he was bruised for our sins: the chastisement of our peace was upon him, and by his bruises we are healed.”

“Kish, who is called harsh, signifies not only his elect, but also the Redeemer himself. For no one was harsher toward himself than he. For the prophet, indicating the severity of this harshness, says: "Truly he himself bore our infirmities, and he himself carried our sorrows" (Isa. 53:4). For to die is not to suffer for mortals, who are subject to the suffering of a condemned nature. He therefore was exceedingly harsh toward himself, who had nothing in himself by which he might suffer; but in order to free us by suffering, he graciously assumed that by which he might be harsh toward himself and be able to suffer.”

Imported from an open dataset — not yet checked against the printed edition.