The Gospel for this Sunday of Advent again presents the figure of John the Baptist, and it depicts him speaking to the people who have come to him at the Jordan River to be baptized. Because John speaks to them with tough words, exhorting them to prepare themselves for the coming of the Messiah, some ask him, “What must we do?” (Luke 3:10, 12, 14). These dialogues are very interesting and show themselves to be of great contemporary relevance.
The first reply is addressed to the crowd in general. The Baptist says: “Whoever has 2 tunics, give 1 to someone who has none, and whoever has food to eat, do the same” (3:11). Here we can see a criterion of justice animated by charity. Justice demands that the imbalance between those who have more than enough and those who lack the necessities be overcome; charity moves us to be attentive to others and to meet their needs rather than looking for justifications to defend our interests. Justice and charity are not opposed but both are necessary and complete each other. “There will always be situations of material need where help in the form of concrete love of neighbor is indispensable” (“Deus caritas est,” 28).