We must overcome the temptation to restrict ourselves to what we already have, or think we have, safely in our possession: it would be sure death in terms of the Church’s presence in the world; the Church, for that matter, can only be missionary, in the outward movement of the Spirit. From its origins, the Christian people has clearly recognized the importance of communicating the Good News of Jesus to those who did not yet know him. In recent years the anthropological, cultural, social and religious framework of humanity has changed; today the Church is called to face new challenges and is ready to dialogue with different cultures and religions, in the search for ways of building, along with all people of good will, the peaceful coexistence of peoples. The field of the mission ad gentes appears much broader today, and no longer to be defined on the basis of geographic considerations alone; in effect, not only non-Christian peoples and those who are far distant await us, but so do social and cultural milieux, and above all human hearts, which are the real goal of the missionary activity of the People of God.This is the mandate whose faithful fulfilment “must follow the road Christ himself walked, a way of poverty and obedience, of service and of self-sacrifice even unto death, a death from which he emerged victorious by his resurrection” (Ad Gentes, 5). Yes! We are called to serve the humanity of our own time, trusting in Jesus alone, letting ourselves be enlightened by his word: “You did not choose me, but I chose you and appointed you that you should go and bear fruit and that your fruit should abide” (Jn 15:16). How much time we have lost, how must work has been set back, on account of our lack of attention to this point! Everything is to be defined starting with Christ, as far as the origins and effectiveness of mission is concerned: we receive mission always from Christ, who has made known to us what he has heard from his Father, and we are appointed to mission through the Spirit, in the Church. Like the Church herself, which is the work of Christ and his Spirit, it is a question of renewing the face of the earth starting from God, God always and alone.
Benedict XVI
Oporto, May 14, 2010