The principle of solidarity (or “social charity” or “friendship”) is a direct demand of human and Christian brotherhood. We all have the same origin. We are all made in the image and likeness of God. This origin brings us together as a society of people sealed by the sacrifice of Christ.

Solidarity is made known by the distribution of material and spiritual goods. As Christians, we are called to give to those who have nothing. Jesus said, “Whoever has two tunics should share with the person who has none. And whoever has food should do likewise” (Luke 3:11). And He commands us, “Go into the whole world and proclaim the gospel to every creature” (Mark 16:15).

Solidarity also presupposes the effort for a more just social order in which tensions are more easily reduced and conflicts more readily settled by negotiation (CCC 1940). Therefore, each small (and large) community should be able to resolve problems within themselves. “If your brother sins against you, go and tell him his fault between you and him alone” (Matthew 18:15).