When Jesus heard it, he said unto them,
They that are whole have no need of the physician, but they that are sick: I came not to call the righteous, but sinners to repentance.
All Commentaries on Mark 2:17 Go To Mark 2
Gregory of Nyssa
AD 394
They who use the knife or heat to remove certain unnatural growths in the body, such as cysts or warts, do not bring to the person they are serving a method of healing that is painless, though certainly they apply the knife without any intention of injuring the patient. Similarly whatever material excrescences are hardening on our souls, which have been made carnal by collusion with inordinate passions, will be, in the day of the judgment, cut and scraped away by the ineffable wisdom and power of him who, as the Gospel says, “healed those that were sick.” For as he says, “they who are well have no need of the physician, but they that are sick.” Just as the excision of the wart gives a sharp pain to the skin of the body, so then must there be some anguish in the recovering soul which has had a strong bent to evil.