2. As a consequence, this particular form of missionary cooperation between the Churches, that is, of fidei donum priests, which has been in place since the middle of last century, remains valid even today. It is particularly so in the case of the established Churches whose focus is on those specific Churches not only in Africa but also in other continents - such as Asia, Latin America and Oceania - where evangelisation was needed and is still required today with new enthusiasm and zeal due to the low living standards and limited personnel.

The exchange of diocesan clergy between the Churches of the mission territories, whether it is in the same country whose regions and zones are less evangelized, or in other countries of the same continent in need of apostolic personnel, or even to other continents of missionary territories, has been made possible by this missionary gift. In view of the diminished number of life-time missionaries that are now available from the already established Churches, this exchange ought to be fostered and promoted⁵.