"The order of the Mass is arranged upon a plan so well conceived, that everything done by Jesus Christ or concerning Him, from His Incarnation to His Ascension, is therein largely contained either in words or in actions, and wonderfully presented." — Pope Innocent III
This discussion of the Order of the Mass considers both the Novus Ordo and Traditional Latin versions of the Roman Rite. There are significant differences between them but much in common. One of the reasons they appear different is because the Missal for the new mass refers to parts of the mass by different names than they had traditionally been called by. Also several of the prayers of the TLM were shortened and converted to English so they are no longer identifiable by their old Latin names. In spite of these differences in naming conventions, the essential organization of the two rites is similar.
The Mass begins with Introductory rites, followed by Scripture lessons, the Eucharistic service, and the concluding rites. The heart of the Mass is the Liturgy of the Eucharist, which is composed of three parts. In the outline below, both Novus Ordo and TLM names for parts of the mass are given.
Many of the Prayers of the Roman mass are repeated very time a mass is said. Those prayers that are an essential, unchanging part of the mass are called the Ordinary of the Mass. Certain opening prayers, the Roman Canon and much of the Eucharistic liturgy is part of the Ordinary.
The scripture readings and selected prayers that vary according to the season, feast-day, and type of mass are called the Propers of the Mass. In addition to the scripture lessons, the Propers include certain prayers read before and after scripture readings, and during the Offertory. In the TLM the Proper prayers include the Introit, Collect, Gradual, Preface, and the Secrets. In the Novus Ordo the Propers include the Opening Prayer, Collect and Responsorial Psalms.
There are several types of Propers. Propers of the Season refer to those prayers and scripture readings said for Sundays and Holy Days. The Propers of the Season are used for all feast days of the Church that occur during specific liturgical seasons, including all movable feast days.
The Propers of the Saints refer to those prayers and scripture passages that are read on feast days of saints that are celebrated during Ordinary time. Prayers and scriptures that are shared between saints with similar attributes, (bishops, confessors, martyrs, virgins, etc.) are referred to as Common of the Saints. The Propers of the Saints are mainly celebrated by daily mass attendees and religious communities who recite daily prayers.
The Ordinary of the Mass is typically in the middle of the Roman Missal; the Proper of the Seasons is in the first half of the missal, and the Proper of the Saintsis in the second half of the missal.
A precise comparison between the Novus Ordo and TLM is difficult because many of the prayers in the new mass are significantly shortened. One reason for this is that many prayers said silently in the TLM are said aloud in the new mass. Another reason is that the Novus Ordo also offers three rather than two scripture readings and prayers of the faithful were added. Nevertheless, most traditional prayers still exist in the new mass, although some are in abbreviated form.
The table below shows the order of mass for both the new and traditional Roman rites. The parts of the mass in Green boldface consist of prayers and scripture passages that vary by type of mass and liturgical season. These are known as the Propers. Most of the other prayers are invariable, and are said in the same way every time mass is offered.
| NOVUS ORDO | TRIDENTINE RITE |
|---|---|
| Introductory Rites | Prayers at the Foot of the Altar |
| Greeting | Psalm 42 - Judica Me |
| Penitential Rite | Confiteor |
| Priest Approaches the Altar | |
| Liturgy of the Word | Mass of the Catechumens |
| Opening Prayer | Introit |
| Lord Have Mercy | Kyrie |
| Gloria | Gloria |
| Collect | Collect |
| First Reading | Epistle |
| Responsorial Psalm | |
| Second Reading | |
| Alleluia | Gradual |
| Gospel | Gospel |
| Homily | Homily |
| Prayers of the Faithful | |
| Creed | Creed |
| Liturgy of the Eucharist | Mass of the Faithful |
| Part 1: Offertory | |
| Offertory Hymn/Collection | Offertory Hymn/Colection |
| Presentation of Gifts | Offertory Prayers |
| Prayer over the Gifts | Incensing of Gifts (high mass) |
| Washing of Hands | Washing of Hands |
| Prayer to the Holy Trinity (epiclesis) | |
| Pray Brethren . . | Orate Fratres |
| Secrets | |
| Part 2: Consecration | |
| Lift up your hearts . . | Sursum Corda |
| It is right and just . . | Preface |
| Sanctus | Sanctus |
| Eucharistic Prayer | Canon of the Mass |
| Thanksgiving, Epiclesis | Commemoration, Oblation |
| Words of Institution | Words of Institution |
| Commemoration, Anamnesis | Anamnesis |
| Epiclesis, Intercession, Doxology | Epiclesis, Intercession, Doxology |
|
The Canon is the most sacred part of the Mass and it is governed by particular traditions. Changes between the NO and TLM versions are discussed below. | |
| Part 3: Communion | |
| Lord's Prayer | Pater Noster |
| Sign of Peace | |
| Breaking of Bread | Breaking of the Bread |
| Lamb of God | Agnus Dei |
| Prayers Before Communion | Payers Before Communion |
| Communion | Communion |
| Ablutions (Washing) | Ablutions |
| Prayer After Communion | Prayers After Communion |
| Concluding Rites | Concluding Rites |
| Final Blessing | Dismissal |
| Dismissal | Final Blessing |
| Last Gospel | |
| Prayers After Mass (Low Mass only) | |
| Recessional | Recessional |
There are significant differences between the New Mass and the Traditional rite that relate to customary usages and rubrics, but do not directly effect the order of the mass. For example, orientation of the priest and location of the altar, music, language of the mass, dispositon on receiving communion, lay participation in the liturgy, etc. All of these factors affect the presentation of mass significantly but do not change the Order of Mass.
The Consecration is the most sacred part of the mass, and it is governed by traditions dating to the earliest Christian liturgies. The Roman canon devised by Gregory the Great in 600 A.D. is similar to the very first known version of the Roman Canon, and has been passed down for 14 centuries with its essential parts unchanged.
The Consecration as a whole is referred to by several different terms, depending on the rite it is associated with. All of the following terms refer to the part of the mass during which the host is consecrated. The canon is generally understood as the part of mass beginning with the "Sanctus", ending with the minor elevation and "Doxology".
Two prayers generally provide the transition between the Offertory and the Consecration.
The prayers of the consecration follow a particular order, and have specific meanings. Together, they make up the "Form" of the Sacrament of the Eucharist. These terms are used to describe specific parts of the Eucharistic prayer that contain the key elements of a valid consecration.
Changes in the Roman Rite between the traditional and Novus Ordo masses include both rubrics and texts. Rubrics determine the style, gestures, and appearance of the mass. The most significant change to the rubrics relate to the fact that in the new mass, the Eucharistic prayers are said aloud rather than inaudibly. In addition the priest has the option of facing the congregation rather than the high altar, and in many churches the high altar no longer exists.
The most significant change to the text of the Consecration is that in the new mass there are four different options for the Eucharistic prayer. In contrast, the Roman Canon of the Tridentine has been fixed and invariable for centuries.
One motivation for the change in the text of the Eucharist prayers had much to do with the change to the rubrics. In the new mass the Eucharistic prayers are intended to be said aloud and understood by the congregation, so shorter prayers seemed desirable. In the Traditional Latin Mass the entire Eucharistic liturgy was prayed in silence, so longer prayers did not seem cumbersome or repetitive.
Because the idea of changing the Canon was controversial, the first of four Eucharistic Prayers permitted in the new mass is a straight-forward translation of the Tridentine canon. The other three Eucharistic prayers were written based on other existing or ancient rites. The idea of providing a selection of different Eucharistic prayers was that priest would have options to select the most appropriate prayer for the occasion, audience, and type of mass.
A side be side comparison of all parts of the four Eucharistic prayers, can be found on the Catholic Resources website.
Q. 932. What are the chief parts of the Mass?
A. The chief parts of the Mass are:
Q. 933. At what part of the Mass does the Offertory take place, and what parts of the Mass are said before it?
A. The Offertory takes place immediately after the uncovering of the chalice. The parts of the Mass said before it are: The Introit, Kyrie, Gloria, Prayers, Epistle, Gospel and Creed. The Introit, Prayers, Epistle and Gospel change in each Mass to correspond with the feast celebrated.
Q. 934. What is the part of the Mass called in which the Words of Consecration are found?
A. The part of the Mass in which the words of Consecration are found is called the Canon. This is the most solemn part of the Mass, and is rarely and but slightly changed in any Mass.
Q. 935. What follows the Communion of the Mass?
A. Following the Communion of Mass, there are prayers of thanksgiving, the blessing of the people, and the saying of the last Gospel.