7. “Caritas Christi urget nos” (2 Cor 5:14): it is the love of Christ that fills our hearts and impels us to evangelize. Today as in the past, he sends us through the highways of the world to proclaim his Gospel to all the peoples of the earth (cf. Mt 28:19). Through his love, Jesus Christ attracts to himself the people of every generation: in every age he convokes the Church, entrusting her with the proclamation of the Gospel by a mandate that is ever new. Today too, there is a need for stronger ecclesial commitment to new evangelization in order to rediscover the joy of believing and the enthusiasm for communicating the faith. In rediscovering his love day by day, the missionary commitment of believers attains force and vigour that can never fade away. Faith grows when it is lived as an experience of love received and when it is communicated as an experience of grace and joy. It makes us fruitful, because it expands our hearts in hope and enables us to bear life-giving witness: indeed, it opens the hearts and minds of those who listen to respond to the Lord’s invitation to adhere to his word and become his disciples. Believers, so Saint Augustine tells us, “strengthen themselves by believing”.[De Utilitate Credendi, I:2] The saintly Bishop of Hippo had good reason to express himself in this way. As we know, his life was a continual search for the beauty of the faith until such time as his heart would find rest in God.[Cf. Saint Augustine, Confessions, I:1] His extensive writings, in which he explains the importance of believing and the truth of the faith, continue even now to form a heritage of incomparable riches, and they still help many people in search of God to find the right path towards the “door of faith”.
Only through believing, then, does faith grow and become stronger; there is no other possibility for possessing certitude with regard to one’s life apart from self-abandonment, in a continuous crescendo, into the hands of a love that seems to grow constantly because it has its origin in God.
New mandate, new evangelization, new Church. New is nothing to be concerned about, in the thinking of Saint Augustine. (“Ever ancient, ever new.”)