Catechism of the Catholic Church

Jesus scandalized the Pharisees by eating with tax collectors and sinners as familiarly as with themselves. Against those among them "who trusted in themselves that they were righteous and despised others," Jesus affirmed: "I have not come to call the righteous, but sinners to repentance." He went further by proclaiming before the Pharisees that, since sin is universal, those who pretend not to need salvation are blind to themselves. (545)