Paul VI's Constitution:(1) Authorizing the new missal
...there has grown and spread among the Christian people the liturgical renewal which, according to Pius XII, Our predecessor of venerable memory, seems to show the signs of God's providence in the present time, a salvific action of the Holy Spirit in His Church.(2) This renewal has also shown clearly that the formulas of the Roman Missal ought to be revised and enriched.Comment: The new missal is authorized based on the 'liturgical renewal' which was started under Pius XII. So, not authorized by Papal Authority, but by the authority of a dead pope. Ok. Makes total sense (sarcasm alert).The recent Second Vatican Ecumenical Council, in promulgating the Constitution Sacrosanctum Concilium, established the basis for the general revision of the Roman Missal:Comment: The new missal is not authorized by papal authority. Instead, V2 established "the basis" (i.e. argument) why the missal needed updating. Still not any kind of authority is named which creates this missal, but only "the basis" for it being V2. So not authorized by papal authority in any way. (2) who does this law apply to?Not mentioned.(3) What are the specifics of use & Penalties?We order that the prescriptions of this Constitution go into effect November 30th of this year, the first Sunday of Advent.Comment: The only prescriptions are related to the new missal's contents and layout. There are no rules governing its use.(4) Revoking of previous missalsNot mentioned.(5) How long is this law in effect?Not mentioned.(6) Permissions of this law?Not mentioned.(7) Authority of this law?In conclusion, we wish to give the force of law to all that we have set forth concerning the new Roman Missal.Comment: You can see that all that is authorized by Paul VI is a new missal. His only reason for producing a new missal is because Pope Pius XII started a liturgical renewal and V2 gives a "basis" for why a new missal would be a good idea. The new missal applies to no one, there is no allowance to use it, nor penalities for not using it. The new law mentions nothing about Quo Primum being changed or replaced.Over half of the entire document explains the changes of the new missal, which Quo Primum didn't even address. If you cut out the detailed summary of Paul's new missal, his law would be a few sentences long.
The Roman Missal, promulgated in 1570 by Our predecessor, St. Pius V, by decree of the Council of Trent,(1) has been received by all as one of the numerous and admirable fruits which the holy Council has spread throughout the entire Church of Christ. For four centuries, not only has it furnished the priests of the Latin Rite with the norms for the celebration of the Eucharistic Sacrifice, but also the saintly heralds of the Gospel have carried it almost to the entire world. Furthermore, innumerable holy men have abundantly nourished their piety towards God by its readings from Sacred Scripture or by its prayers, whose general arrangement goes back, in essence, to St. Gregory the Great.(history lesson; no law present)
Since that time there has grown and spread among the Christian people the liturgical renewal which, according to Pius XII, Our predecessor of venerable memory, seems to show the signs of God's providence in the present time, a salvific action of the Holy Spirit in His Church.(2) This renewal has also shown clearly that the formulas of the Roman Missal ought to be revised and enriched. The beginning of this renewal was the work of Our predecessor, this same Pius XII, in the restoration of the Paschal Vigil and of the Holy Week Rite,(3) which formed the first stage of updating the Roman Missal for the present-day mentality.(reasons for the new missal; no law present)
The recent Second Vatican Ecumenical Council, in promulgating the Constitution Sacrosanctum Concilium, established the basis for the general revision of the Roman Missal: in declaring "both texts and rites should be drawn up so that they express more clearly the holy things which they signify";(4) in ordering that "the rite of the Mass is to be revised in such a way that the intrinsic nature and purpose of its several parts, as also the connection between them, can be more clearly manifested, and that devout and active participation by the faithful can be more easily accomplished";(5) in prescribing that "the treasures of the Bible are to be opened up more lavishly, so that richer fare may be provided for the faithful at the table of God's Word";(6) in ordering, finally, that "a new rite for concelebration is to be drawn up and incorporated into the Pontifical and into the Roman Missal."(7)(reasons for the new missal from V2; no law present)
One ought not to think, however, that this revision of the Roman Missal has been improvident. The progress that the liturgical sciences has accomplished in the last four centuries has, without a doubt, prepared the way. After the Council of Trent, the study "of ancient manuscripts of the Vatican library and of others gathered elsewhere," as Our predecessor, St. Pius V, indicates in the Apostolic Constitution Quo primum, has greatly helped for the revision of the Roman Missal. Since then, however, more ancient liturgical sources have been discovered and published and at the same time liturgical formulas of the Oriental Church have become better known. Many wish that the riches, both doctrinal and spiritual, might not be hidden in the darkness of the libraries, but on the contrary might be brought into the light to illumine and nourish the spirits and souls of Christians.
Let us show now, in broad lines, the new composition of the Roman Missal....(more reasons for the new missal; no law present)(here are the changes of the new missal, blah, blah, blah)In conclusion, we wish to give the force of law to all that we have set forth concerning the new Roman Missal.
In promulgating the official edition of the Roman Missal, Our predecessor, St. Pius V, presented it as an instrument of liturgical unity and as a witness to the purity of the worship the Church. While leaving room in the new Missal, according to the order of the Second Vatican Council, "for legitimate variations and adaptations,"(15) we hope nevertheless that the Missal will be received by the faithful as an instrument which bears witness to and which affirms the common unity of all. Thus, in the great diversity of languages, one unique prayer will rise as an acceptable offering to our Father in heaven, through our High-Priest Jesus Christ, in the Holy Spirit.(this law created a new missal, nothing else).
We order that the prescriptions of this Constitution go into effect November 30th of this year, the first Sunday of Advent.(this constitution orders a new missal, that's it)
We wish that these Our decrees and prescriptions may be firm and effective now and in the future, notwithstanding, to the extent necessary, the apostolic constitutions and ordinances issued by Our predecessors, and other prescriptions, even those deserving particular mention and derogation.(legal wording that is at the end of 99% legal documents.)http://w2.vatican.va/content/paul-vi/en/apost_constitutions/documents/hf_p-vi_apc_19690403_missale-romanum.html