14 All Christian people should assist, and generously, the work of the Society for the Propagation of the Faith, the principal mission organization of the Church. With due regard for the very pious woman who was its foundress, and the City of Lyons, its seat, We have transferred to Rome the Society for the Propagation of the Faith. We have also reorganized it, conferred upon it, as it were, Roman citizenship, and given it charge of meeting all the present needs of the missions, as well as those that will arise in the future. How many and how great these needs, how poor the great majority of missionaries was assuredly made plain by the Vatican Missionary Exhibition, despite the fact that many who visited the Exhibition, dazzled by the abundance, novelty, and attractiveness of what they saw, did not sufficiently appreciate this fact. Do not be ashamed, Venerable Brothers, to make yourselves even beggars for Christ and the salvation of souls. Both by your writings and the eloquence of your words, which come from the depths of your hearts, insist that your people by their renewed interest in and generosity toward the missions, increase and render more abundant the harvest which the Society for the Propagation of the Faith is gathering every year. Since no one can be thought so poor and naked, no one so infirm or hungry, as he who is deprived of the knowledge and grace of God, so there is no one who cannot understand that both the mercy and the rewards of God shall be given to him who, on his part, shows mercy to the neediest of his fellow-beings.
Source: Rerum Ecclesiae (Vatican.va)