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
Irenaeus of Lyons
AD 202
What competent doctor, when asked to cure a sick person, would simply follow the desires of the patient, and not act in accordance with the requirements of good medicine? The Lord himself testified that he came as the physician of the sick, saying, “Those who are well have no need of a physician, but those who are sick; I came not to call the righteous, but sinners.” How, then, are the sick to be made strong? How are sinners to repent? Is it by merely holding fast to what they are presently doing? Or, on the contrary, by undergoing a great change and reversal of their previous behavior, by which they had brought upon themselves serious illness and many sins? Ignorance, the mother of intractability, is driven out by knowing the truth. Therefore the Lord imparted knowledge of the truth to his disciples, by which he cured those who were suffering, and restrained sinners from sin. So he did not speak to them in accordance with their previous assumptions, nor answer according to the presumptions of inquirers, but according to sound teaching, without any pretense or pandering. .