6. Although each Ordinary has the right and duty to conduct, promote, and preside over this work in his own diocese, yet the coperation of several Bishops will be appropriate or even necessary in establishing offices and works to observe, study, and control this work as a whole.
Accordingly it will rest with the Ordinaries themselves to confer together and consider how a proper uniformity of action and coordination can be obtained.
7. Religious Superiors are bound to watch and to see to it that their subjects adhere strictly and faithfully to the prescriptions laid down by the Holy See or by the local Ordinaries in this matter.
In order that so n.o.ble a work as the "union" of all Christians in one true faith and Church may daily grow into a more conspicuous part of the entire care of souls, and that the whole Catholic people may more earnestly implore this "union" from Almighty G.o.d, it will certainly be of a.s.sistance that in some appropriate way, for example through Pastoral Letters, the faithful be instructed regarding these questions and projects, the prescriptions of the Church in the matter, and the reasons on which they are based. All, especially priests and religious, should be exhorted and warmly encouraged to be zealous by their prayers and sacrifices to ripen and promote this work, and all should be reminded that nothing more effectively paves the way for the erring to find the truth and to embrace the Church than the faith of Catholics, when it is confirmed by the example of upright living.