To the people of our time, her travelling companions, the Church also offers her social doctrine. In fact, when the Church “fulfils her mission of proclaiming the Gospel, she bears witness to man, in the name of Christ, to his dignity and his vocation to the communion of persons. She teaches him the demands of justice and peace in conformity with divine wisdom”. This doctrine has its own profound unity, which flows from Faith in a whole and complete salvation, from Hope in a fullness of justice, and from Love which makes all mankind truly brothers and sisters in Christ: it is the expression of God's love for the world, which he so loved “that he gave his only Son” (Jn 3:16). The new law of love embraces the entire human family and knows no limits, since the proclamation of the salvation wrought by Christ extends “to the ends of the earth” (Acts 1:8).