11 No less vigorous among you are those works of zeal which are organized for the benefit of the children of the Church within the confines of your country: the diocesan charity offices, with their wise and practical organization, by means of the parish priests and through the labors of the religious institutes, bring to the poor, to the needy and to the sick the gifts of Christian mercy and relief from misery. In carrying on this most important ministry the sweet discerning eyes of faith see Christ present in the poor and afflicted who are the mystic suffering members of the Most Benign Redeemer.
Source: Sertum Laetitiae (Vatican.va)