What does it mean that the whole do not need a physician?

Jesus' statement that the whole do not need a physician signifies those who trust in their own righteousness and fail to recognize their sinful condition. They stand outside the healing offered by Christ because they perceive themselves as adequate or justified by their actions. In contrast, the sick—those acutely aware of their spiritual deficiencies—are the ones who seek and find solace in Christ, who provides the mercy and healing they desperately need. This reflects a core principle of sovereign grace theology that emphasizes reliance on Christ alone for salvation, as opposed to human effort.