Gregory the Great — as excerpted in the Catena Aurea on Luke 7:36-50

“(ubi sup.) But both debtors being forgiven, the Pharisee is asked which most loved the forgiver of the debts. For it follows, Who then will love him most? To which he at once answers, I suppose, that he to whom he forgave most. And here we must remark, that while the Pharisee is convicted upon his own grounds, the madman carries the rope by which he will be bound; as it follows, But he said unto him, Thou hast rightly judged. The good deeds of the sinful woman are enumerated to him, and the evils of the pretended righteous; as it follows, And he turned to the woman, and said unto Simon, Seest thou this woman? I entered into thy house, thou gavest me no water for my feet, but she hath washed my feet with her tears.”