[EXCERPTS FROM SOME AUTHORITATIVE CHURCH DOCUMENTS 
PROHIBITING  
INNOVATIONS IN THE LITURGY:] 
 
FROM: 
 
INSTRUCTION CONCERNING WORSHIP OF THE EUCHARISTIC MYSTERY...   
Inaestimabile Donum 
 
Prepared by the Sacred Congregation for the Sacraments and  
Divine Worship Approved and Confirmed by His Holiness Pope John  
Paul II April 17, 1980 
 
Foreword 
 
Following the letter that Pope John Paul II addressed on  
February 24, 1980, to the bishops and, through them, to the  
priests, and in which he again considered the priceless gift of  
the Holy Eucharist, the Sacred Congregation for the Sacraments  
and Divine Worship is calling to the bishops' attention certain  
norms concerning worship of this great mystery.  
 
These indications are not a summary of everything already  
stated by the Holy See in the documents concerning the  
Eucharist promulgated since the Second Vatican Council and  
still in force, particularly in the Missale Romanum,[1] [ Ed.  
Typica Altera, Rome, 1975. ] the Ritual De Sacra Communione et  
de Cultu Mysterii Eucharistici Extra Missam,[2][Ed Typica,  
Rome, 1973.  ] and the Instructions Eucharisticum Mysterium,[3]  
[ Sacred Congregation of Rites, May 25, 1967: AAS 59 (19671,  
pp. 539-573  ] Memoriale Domini,[4] [ Sacred Congregation for  
Divine Worship,May 29, 1969:AAS 61 (1969), pp. 541-545.  ]  
Immensae caritatis,[5] [ Sacred Congregation for the Discipline  
of the Sacraments, January 29, 1973: AAS 65 (1973), pp.  
264-271.] and Liturgicae instaurationes.[6] [Sacred  
Congregation for Divine Worship, September 5, 1970: AAS 62  
(1970), pp. 692-704. ] 
 
. . . [W]e are face to face with a real falsification of the  
Catholic Liturgy: "One who offers worship to God on the  
Church's behalf in a way contrary to that which is laid down by  
the Church with God-given authority and which is customary in  
the Church is guilty of falsification."[7] [ St. Thomas, Summa  
Theologiae, 2-2, Q. 93, A. 1.] 
 
None of these things can bring good results. The consequences  
are--and cannot fail to be--the impairing of the unity of Faith  
and worship in the Church, doctrinal uncertainty, scandal and  
bewilderment among the People of God, and the near  
inevitability of violent reactions. 
 
The faithful have a right to a true Liturgy, which means the  
Liturgy desired and laid down by the Church, which has in fact  
indicated where adaptations may be made as called for by  
pastoral requirements in different places or by different  
groups of people. Undue experimentation,  changes and  
creativity bewilder the faithful. The use of unauthorized texts  
means a loss of the necessary connection between the lex orandi  
and the lex credendi. The Second Vatican Council's admonition  
in this regard must be remembered: < "No person, even if he be  
a priest, may add, remove or change anything in the Liturgy on  
his own authority."> [emphasis added][8] [ Second Vatican  
Council, Constitution on the Sacred Liturgy, Sacrosanctum  
Concilium, nos. 22, 3.]  And Paul VI of venerable memory stated  
that: "Anyone who takes advantage of the reform to indulge in  
arbitrary experiments is wasting energy and offending the  
ecclesial sense."[9] [ Paul VI, address of August 22, 1973:  
L'Osservatore Romano, August 23, 1973.] 
 
. . . 
 
1. "The two parts which in a sense go to make up the Mass,  
namely the Liturgy of the Word and the Eucharistic Liturgy, are  
so closely connected that they form but one single act of  
worship."[10] [Second Vatican Council, Constitution on the  
Sacred Liturgy, Sacrosanctum Concilium, no. 56. ] A person  
should not approach the table of the Bread of the Lord without  
having first been at the table of His Word.[11] [Cf. ibid., 56;  
cf. also Second Vatican Council, Dogmatic Constitution on  
Divine Revelation, Dei Verbum, no. 21. ]  Sacred Scripture is  
therefore of the highest importance in the celebration of Mass.  
Consequently there can be no disregarding what the Church has  
laid down in order to insure that "in sacred celebrations there  
should be a more ample, more varied and more suitable reading  
from Sacred Scripture."[12] [Second Vatican Council,  
Constitution on the Sacred Liturgy, Sacrosanctum Concilium, no.  
35. ] The norms laid down in the Lectionary concerning the  
number of readings, and the directives given for special  
occasions are to be observed. < It would be a serious abuse to  
replace the Word of God with the word of man, no matter who the  
author may be.> [emphasis added] [13][Cf. Sacred Congregation  
for Divine Worship, Instruction Liturgicae instaurationes, no.  
2, a.] 
 
. . . 
 
5. Only the Eucharistic Prayers included in the Roman Missal or  
those that the Apostolic See has by law admitted, in the manner  
and within the limits laid down by the Holy See, are to be  
used. <To modify the Eucharistic Prayers approved by the Church  
or to adopt others privately composed is a most serious abuse >  
[emphasis added]. 
 
6. It should be remembered that the Eucharistic Prayer must not  
be overlaid with other prayers or songs.[17] When proclaiming  
the Eucharistic Prayer, the priest is to pronounce < the text >  
[emphasis added] clearly, so as to make it easy for the  
faithful to understand it, and so as to foster the formation of  
a true assembly entirely intent upon the celebration of the  
memorial of the Lord. 
 
. . .  
 
27. If anything has been introduced that is at variance with  
these indications, it is to be corrected. 
 
. . . 
  
 
It seems fitting to recall a remark made by that Pope  
concerning fidelity to the norms governing celebration: "It is  
a very serious thing when division is introduced precisely  
where congregavit nos in unum Christi amor, in the Liturgy and  
the Eucharistic Sacrifice, by the refusing of obedience to the  
norms laid down in the liturgical sphere. It is in the name of  
tradition that we ask all our sons and daughters, all the  
Catholic communities, to celebrate with dignity and fervor the  
renewed Liturgy."[41] [Second Vatican Council, Decree Christus  
Dominus, no. 15. ] . . . 
 
Rome, April 3, 1980, Holy Thursday. 
 
This instruction, prepared by the Sacred Congregation for the  
Sacraments and Divine Worship, was approved on April 17,1980,  
by the Holy Father, John Paul ll, who confirmed it with his own  
authority and ordered it to be published and to be observed by  
all concerned. 
 
James R. Cardinal Knox Prefect Virgilio Noe Assistant Secretary  
FROM: 
 
THE CONSTITUTION ON THE SACRED LITURGY    Sacrosanctum  
Concilium, December 4, 1963 
 
. . . 
 
A. General Norms 
 
22. (1) Regulation of the sacred liturgy depends solely on the  
authority of the Church, that is, on the Apostolic See, and, as  
laws may determine, on the bishop. 
 
(2) In virtue of power conceded by law, the regulation of the  
liturgy within certain defined limits belongs also to various  
kinds of bishops' conferences, legitimately established, with  
competence in given territories. 
 
(3) < Therefore no other person, not even a priest, may add,  
remove, or change anything in the liturgy on his  own  
authority. >  [Emphasis added.] 
 
 
FROM: 
 
CODE OF CANON LAW (Codex Iuris Canonici) (1983): 
 
Can. 846 -  1.  In sacramentis celebrandis fideliter serventur  
libri liturgici a competenti auctoritas probati; quapropter  
nemo in iisdem quidpiam proprio marte addat, demat aut mutet. 
 
[ Can. 846 -  1.  The liturgical books approved by competent  
authority are to be faithfully observed in the celebration of  
the sacraments; therefore no one on personal authority may add,  
remove or change anything in them. ] 

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