The mandate to preach the Gospel is not exhausted, therefore, by a Pastor in caring for that portion of the People of God entrusted to his pastoral care, or in the sending of a fidei donum priest, layman or laywoman. It should involve the whole activity of the particular Church, all her sectors, in short, all her being and action. Vatican II indicated this clearly and the successive Magisterium confirmed it forcefully. This requires the constant adaptation of lifestyles, pastoral plans and diocesan organization to this fundamental dimension of being Church, especially in our world in constant change. And this is also true for the Institutes of Consecrated Life and the Societies of Apostolic Life, as well as for the Ecclesial Movements: all the components of the great mosaic of the Church must feel strongly drawn in by the Lord’s mandate to preach the Gospel, so that Christ is proclaimed everywhere. We, Pastors, men and women religious and all the faithful in Christ, must follow in the footsteps of the Apostle Paul, who, “a prisoner for Christ on behalf of you Gentiles” (Ephesians 3:1), worked, suffered and fought to have the Gospel reach the Gentiles (cf. Ephesians 1:24-29), not sparing energy, time and means to make Christ’s Message known.
— Pope Benedict XVI, Message for World Mission Day 2012