Council of Trent: Session 25
On the Index of Books; on the Catechism, Breviary, and Missal
The sacred and holy Synod, in the second Session celebrated under our most holy lord, Pius IV., commissioned certain chosen Fathers to consider what ought to be done touching various censures, and books either suspected or pernicious, and to report thereon to the said holy Synod; hearing now that the finishing hand has been put to that labour by those Fathers, which, however, by reason of the variety and multitude of books cannot be distinctly and conveniently judged of by the holy Synod; It enjoins that whatsoever has been by them done shall be laid before the most holy Roman Pontiff, that it may be by his judgment and authority terminated and made public. And it commands that the same be done in regard of the Catechism, by the Fathers to whom that work was consigned, and as regards the missal and breviary.
On the Place of Ambassadors
The holy Synod declares, that, by the place assigned to ambassadors, as well Ecclesiastics as Seculars, whether in Session, procession, or in any other acts whatsoever, no prejudice has been created in regard of any amongst them; but that all their own rights and prerogatives, and those of their own emperor, kings, republics, and princes are uninjured and untouched, and continue in the same state as they were before the present Council.
On Receiving and Observing the Decrees of the Council
So great has been the calamitousness of these times, and such the inveterate malice of the heretics, that there has been nothing ever so clear in our statement of faith, nothing so surely settled, which they, at the instigation of the enemy of the human race, have not defiled by some sort of error. For which cause the holy Synod hath made it Its especial care to condemn and anathematize the principal errors of the heretics of our time, and to deliver and teach the true and Catholic doctrine; even as It has condemned, and anathematized, and decreed.
And whereas so many bishops, summoned from the various provinces of the Christian world, cannot be absent for so long a time without great loss to the flock entrusted to them, and without universal danger; and whereas no hope remains that the heretics, after being so often invited, even with the public faith which they desired, and after being so long expected, will come hither later; and it is therefore necessary to put an end at length to the sacred Council: it now remains for It to admonish in the Lord all princes, as It hereby does, so to afford their assistance as not to permit the things which it has decreed to be corrupted or violated by heretics; but that they be by them and all others devoutly received, and faithfully observed. And should any difficulty arise in regard of receiving those decrees, or should anything be met with, which it does not believe, requiring explanation or definition, the holy Synod trusts that, besides the other remedies appointed in this Council, the most blessed Roman Pontiff will make it his care that, for the glory of God and the tranquillity of the Church, the necessities of the provinces be provided for, either by summoning particularly out of the provinces where the difficulties shall have arisen, those persons whom he shall deem it expedient (to employ) in treating of the said matters; or even by the celebration of a general Council, if he judge it necessary; or in such other way as shall seem to him most suitable.