Jesus used this proverb about sick people and doctors to teach them that only people who know that they are sinful realize that they need Jesus. (See: [[rc://en/ta/man/translate/writing-proverbs]])
Jesus expects his hearers to understand he came for those who want help. Alternate translation: "I came for people who understand they are sinful, not for people who believe they are righteous" (See: [[rc://en/ta/man/translate/figs-irony]])
The words "I came to call" are understood from the phrase before this. Alternate translation: "but I came to call sinners" (See: [[rc://en/ta/man/translate/figs-ellipsis]])