1. Introduction
One of the more evident changes wrought by the twentieth-century reform of the Roman RiteFootnote 1 was the de facto replacement of the ninefold Kyrie eleison with a sixfold call-and-response format.Footnote 2 While the scholarly justifications for this particular reform are not the main subject of the present essay, we can consider, from a Thomistic perspective, the possible philosophical and theological consequences of this change in the liturgical recitation or chanting of the Kyrie. However, to examine this question more fruitfully – with reference to Saint Thomas – requires reflecting on the history of the Kyrie and its various historical forms. To that end, this study will proceed in four sections and a conclusion. First, we will consider Aquinas’s distinctly Trinitarian exegesis of the Kyrie in light of the history of troped texts in the liturgy. Next, we will account for the diversity of the troped Kyrie genre while still highlighting the critical importance of the Trinitarian elements. The third section will briefly reference recent work on Aquinas’s theory of the passions and their effects of language formation in preparation for the fourth section, which offers a philosophical understanding of the role of melisma in the liturgy. Finally, by way of conclusion, we present a moderate case for restoring some troped Kyrie texts in the liturgy of the Roman Rite.
2. Aquinas on the Kyrie
The employment of allegorical interpretation, for purposes as diverse as scriptural exegesis and liturgical commentary, carries the risk of imputing to the revealed text or ritual action notions foreign or even inimical to the original. Nevertheless, as David F. Wright noted in an article on conflicting medieval approaches to liturgical allegorization, ‘the medieval author who could avoid allegory is rare indeed’.Footnote 3 Wright’s paper, a study of Albert the Great’s critique of the more allegorical techniques utilized by a type of liturgical commentary running from Amalarius of Metz in the ninth-century, to twelfth-century works by Rupert of Deutz and Lothar of Segni, shows the ways in which Albert attempted – with varying degrees of successFootnote 4 – to offer an interpretation of the liturgy which, while reserving a proper place for allegory, restrained its usage when it seemed to depart clearly from the rite’s actual celebration or literal text. Albert’s desire to ground allegorical and spiritual interpretation in the liturgical sensus litteralis hearkens back to the prior contributions of Hugh of Saint-Victor with regard to the senses of scripture, as well as to the threefold consideration of the sacraments in terms of sacramentum tantum, res et sacramentum, and res tantum.Footnote 5 Thomas Aquinas will later follow Hugh and Albert in exalting the fundamental importance of the sensus litteralis for scriptural exegesis,Footnote 6 but whether Thomas consistently applies the same restraint to allegory in his liturgical commentariesFootnote 7 is a preliminary question worth examining. As a case in point, let us consider the Kyrie of the Mass as interpreted by Thomas.Footnote 8
The ninefold Kyrie (i.e., the recitation or singing of ‘Lord, have mercy’ three times, ‘Christ, have mercy’ three times, and again ‘Lord, have mercy’ three times) is for Thomas an act of preparation through ‘humility’Footnote 9 as one humbly begs the mercy of God.Footnote 10 Several interpretations are offered for the ninefold structure: in the Sentences Commentary, each invocation corresponds to the nine choirs of angelsFootnote 11 while in the Summa, each set of three stands against ‘the threefold misery of ignorance, fault, and punishment’.Footnote 12 Most importantly for Thomas, the Kyrie is an expression of Trinitarian faith: the penitential text says ‘Kyrie eleison three times for the person of the Father; three times for the person of the Son, when Christe eleison is said; and three times for the person of the Holy Spirit, when Kyrie eleison is added’.Footnote 13 Common to both the Sentences Commentary and the Summa Theologiae is the understanding that the Kyrie also expresses the doctrine of perichoresis or circumincessio, that is, the mutual indwelling of each Person in the other two. Each set of three is said ‘according as each person is considered in himself and in order to the other two’,Footnote 14 because ‘all three persons are in one another’.Footnote 15
While a general Trinitarian construal – especially evident when the Kyrie is executed in its ninefold form – enjoys a certain fittingness from the numerical structure alone,Footnote 16 the distinctly perichoretic proposal might possibly be considered a ‘merely allegorical’ superimposition, a fanciful high medieval interpretation imposed upon a rather straightforward plea to the Triune God. The relative simplicity of the ritual text as celebrated today in the various forms of the Roman Rite – mere repetitions of the phrases ‘Kyrie eleison’ and ‘Christe eleison’ – offers no obvious indication of the more complex theological notion of circumincession; indeed, when celebrated in the sixfold manner as prescribed in the Missal of Paul VI, the Kyrie loses the very possibility of a perichoretic interpretation, an interpretation which Aquinas holds as most important and proper to this part of the Mass. Thus one may ask: what is Aquinas’s source for the perichoretic interpretation of the Kyrie? Since he doesn’t explicitly cite any known authority, could Aquinas be guilty of mere fanciful – if original – allegorization, or is he drawing from another source? More seriously, has the Angelic Doctor perpetuated the mistake of those homines illiterati condemned by his master AlbertFootnote 17 by allegorizing far beyond the sensus litteralis missae?
We need not look too far for an answer, if we acknowledge – as has been overwhelmingly provenFootnote 18 – that the Mass and Office of Corpus Christi in its universally promulgated form was composed and compiled by Thomas Aquinas. In the principal manuscript source which forms the basis for the critical edition of the Corpus Christi liturgy (Bibliothèque nationale de France, MS Latin 1143),Footnote 19 which Pierre-Marie Gy convincingly argues to be an original exemplar for later manuscripts (‘le livret originel de la fête’) and perhaps even dates from Aquinas’s lifetime,Footnote 20 the Kyrie of the Mass is clearly indicated at 17v: Kyrie fons bonitatis, a troped text in which the nine petitions are interpolated with unique poetic additions. Kyrie fons bonitatis, furthermore, is not a little-known text or geographically localized variant; indeed, this Carolingian troped Kyrie enjoyed widespread diffusion across Western Europe by the thirteenth century, and was almost certainly familiar to Aquinas.Footnote 21 Gy’s tentative willingness to date MS 1143 on paleographical grounds as early as 1264 (i.e., the year of Corpus Christi’s promulgation as a universal solemnity) further supports its proximity to Aquinas’s own agency in the compilation of the Corpus Christi liturgy, such that the decision to select Kyrie fons bonitatis for the Mass belongs as much to the Angelic Doctor as does the composition of the hymns and antiphons (to include the selection of the contrafacta and musical settings).Footnote 22 This Kyrie is cited in full below, with English translation.
We thus are in possession of a text, already ‘traditional’ by Aquinas’s time,Footnote 25 which expresses the perichoretic interpretation of the ninefold Kyrie given by Thomas in both the Sentences Commentary and Summa Theologiae. While the Person vocatively addressed in each threefold set of invocations follows the customary order of Father (Kyrie), Son (Christe), and Spirit (Kyrie), the individual invocations within each set are each articulated with reference to each person, respectively. For example, the third invocation, while addressed to the Father, refers to the gifts of the Spirit, while the eighth invocation, addressed to the Spirit, refers to the baptism of the Son. Only the third Christe invocation appears as an outlier, containing no explicit epithet for the Spirit. Nevertheless, the structure of Kyrie fons bonitatis makes the doctrine of circumincession – quod omnes personae sunt in se invicem, as Thomas says – especially apparent. Perhaps Aquinas even had this particular text in mind when writing his commentaries on the Kyrie, as he did when composing the Mass of Corpus Christi. In any case, Albert need not worry about his pupil on this point, for Aquinas’s perichoretic construal is no mere allegorization unrooted in the prayers and actions of Mass; rather, this seems to be a case of the Angelic Doctor commenting upon the received liturgical tradition and its sensus litteralis in support of a robust explication of Trinitarian faith.
At this point, we should acknowledge that an explicitly Trinitarian-perichoretic Kyrie like fons bonitatis is certainly not prototypical for the medieval liturgy. Among the more popular Kyrie texts collected in Analecta Hymnica 47, only a few, such as fons bonitatis and Kyrie virginitatis Footnote 26 (both widely diffused throughout Paris, northern France, and both sides of the Rhine) explicitly manifest the perichoretic form; meanwhile, the rarer yet more numerous troped Kyries of limited disribution (many in England alone),Footnote 27 show only the basic form of three sets of invocations for each Person. Other early Frankish types, such as those contained in Paris, BNF MS Latin 887 (of Aquitanian origin) and investigated by David Bjork, often show a purely Christological character (i.e., the troped petitions refer to Christ only).Footnote 28 But, like the aforementioned tropes of English origin, the nine Kyrie texts of MS 887 were not widely diffused; three have no concordances in other sources, three are found in only one other source (Wolfenbüttel Herzog, August-Bibliothek Gud. Lat. 79), and three are found respectively in three manuscripts (Apt, Basilique Sainte-Anne 17; Paris, BNF Lat. 1120; and Limoges, Bibliothèque Municipale 2[17]). A preliminary observation now emerges: despite the composition of many troped Kyrie texts which do not manifest a perichoretic structure, Kyrie fons bonitatis finds its way into the repertoire of many local liturgies and eventually into the Roman Mass of Corpus Christi. Thus, despite the existence of what we might call non-perichoretic Kyrie tropes, the perichoretic type represented by fons bonitatis obtains a place of honor, which Thomas Aquinas singles out for special recognition, both in his Mass commentaries and in the selection of fons bonitatis for the new Eucharistic solemnity.
3. Two problems
If, as Thomas suggests, the Trinitarian-perichoretic aspect of the Kyrie pertains to the sensus litteralis missae and is thus fundamental to a proper understanding of the liturgy, what are we to make of the fact that his own Order’s ordo missae makes no use of the troped Kyrie? Moreover, if the Trinitarian-perichoretic aspect is fundamental, what are contemporary Catholics to make of Aquinas’s interpretation in light of the sixfold Kyrie in the Missal of Paul VI? We will tackle these two problems sequentially. With respect to the first question, we should first say that, while the exemplar of Dominican liturgy given in Santa Sabina XIV L1 contains no troped texts for the Mass Kyrie, the chant settings in folios 361v–363v were originally troped settings, according to the following chart.
The connection between the selected Kyrie setting and the type of feast becomes apparent when one considers, for example, the tropes of Kyrie cum jubilo for Masses of the Blessed Virgin.
Thus, despite the absence of these full tropes in the Humbert of Romans Codex, the selection of the Kyrie cum jubilo setting for Marian Masses shows the close link between the festal celebration and the original troped text. The use of the particular setting therefore functions as something analogous to the incipit of a hymn or psalm, wherein the enunciation of the first line implies the full content of the text. Just as Christ’s cry ‘My God, my God, why have you abandoned me’Footnote 31 suggests not a total loss of faith but the recitation of an entire Psalm rooted in invincible hope, the very intonation of the Kyrie cum jubilo brings to bear the full Marian character of the original tropes. In this light, the Kyrie Pater cuncta Footnote 32 for Sunday Masses, whose text closely – if imperfectly – shows elements of the perichoretic style in the first two sets of petitions,Footnote 33 likewise invokes the doctrine of circumincession simply by virtue of its musical intonation. If the Order of Preachers had selected this Kyrie for the sung conventual Masses of Sunday, then the Trinitarian doctrine implicit therein would be commemorated at the principal liturgical commemoration of each week. By the promulgation of Humbert’s liturgy, therefore, Thomas Aquinas and his Dominican brethren would celebrate the Lord’s Day by, inter alia, chanting a Kyrie tone firmly rooted in the dogma that the Trinitarian Persons indwell mutually in each other.Footnote 34
If we have thus far provided a somewhat adequate accounting for the loss of the troped Kyrie in Aquinas’s time by showing how the melody and ninefold form of fons bonitatis and Pater cuncta are still linked closely to the perichoretic interpretation, a greater difficulty arises in demonstrating the continuity between this complex Trinitarian understanding of the Kyrie and the analogous Penitential Rite in the Missal of Paul VI. In the latter, the ninefold medieval form is often replaced by a call-and-response sixfold structure which, as mentioned before, makes a perichoretic interpretation impossible. Furthermore, the standardized ‘troped’ petitions of the Pauline Missal which may be added by the priest celebrant hearken not to the high medieval Trinitarian development of this rite, but more closely resemble the purely Christological early Frankish types.
We cannot be in the business of directly contrasting a Christological perspective against a Trinitarian one, as if these could be mutually exclusive. Proposing such a confrontation is inadmissable even from an historical point of view, given the long coexistence of Trinitarian and Christological Kyrie tropes across medieval manuscripts. We can certainly acknowledge that, for Thomas Aquinas and other high medieval writers,Footnote 37 the perichoretic perspective gained a certain prestige and importance which both grew alongside and developed out of the earlier Christological tropes. We can even objectively note how the abandonment of the perichoretic form in favor of a series of simpler invocations to Christ alone might involve a certain reduction of theological depth in the Mass. Nevertheless, in order to assess more comprehensively, the consequences of this liturgical shift in the Missal of Paul VI, we must make recourse to methods other than the mere juxtaposition of two options and stating a preference based on superficial criteria.
The remainder of this essay will propose such a method, and to that end, we will engage in a slight shift of perspective. Invoking recent work on Aquinas’s anthropology and its relation to an account of language formation, we will consider the effects of the shift from the syllabic chanting of complex Kyrie tropes like fons bonitatis, on the one hand, to the melismatic chanting of only the words ‘Kyrie eleison – Christe eleison – Kyrie eleison’ which arises when the tropes are removed but the melodies are retained. This analysis will therefore be applicable to both the gradual loss of troped texts in the late medieval period and to the modern Vatican editions of chant settings common to both the pre-conciliar and post-conciliar liturgical books as celebrated today.
4. Aquinas on the cogitative power and language
In a recent Modern Theology article, I investigated the relationship between passion and reason according to Aquinas’s philosophical anthropology, showing how the ‘mitigation of the cogitative power’ caused by vehement passions of the sensitive soul can lead to vocal utterances which are repetitive, stammering, onomatopoieic, or otherwise prelingusitic or pre-rational.Footnote 38 The cogitative power, one of the four internal senses of human beings (alongside the common sense, imagination, and memory), has the general task of identifying particular instantiations of a universal genus, which is further specified by the formation of the minor premise of a practical syllogism.Footnote 39 In other words, the vis cogitativa is a proposition-forming power which produces particular (minor) propositions. While this first refers to an internal cognitional process, vocalized words are ‘signs of the passions of the soul’,Footnote 40 and thus any hindrance or mitigation of the cogitative power will impede the proper formation and vocalization of such propositions according to conventional language. These mitigations, for Aquinas, occur when powerful passions lead the reason astray by causing ‘the imagination to apprehend wrongly’ and ‘the cogitative power to judge badly’.Footnote 41 Strong passions can further impede the proper enunciation of words through the bodily transmutation caused by the passions (recalling that, for Aquinas, passions are bodily motions of the sensitive soul). The utterances that result from emotionally charged moments, therefore, can take the form of those asyndetic, repetitive, stammering, and onomatopoieic interjections. As I summarized,
the aggregate effects of bodily transmutation linked to the passions can lead to certain irrational or pre-rational oral utterances (e.g., groans, sighs, crying, laughter) which signify, even if temporarily, the vehemence of the passions and – possibly – their overpowering of the reason. Onomatopoeic interjections and monosyllabic exclamations, sometimes repeated to the point of stuttering, likewise signify a moment of unresolved struggle between passion and reason. This struggle, however, occurs not principally in the reason, but in the sensitive powers; specifically, Aquinas locates the conflict in the imagination and cogitative power.Footnote 42
The article goes on to contrast the variegated wordplay and clever diction of Aquinas’s poetry with the expansive identical repetition and near-onomatopoeic exclamations in poems by the Franciscans Bonaventure (d. 1274) and Iacopone da Todi (d. 1306), showing how the construal of Franciscan mysticism and theology as ‘more affective’ is generally accurate.Footnote 43 The ‘ecstasy’ signified by undifferentiated voicing is moreover interpreted differently by Aquinas and his Minorite contemporaries. While the Franciscans tended to construe the ascent to ineffable mystical union as consummated in a univocal relinquishing of intellectual and bodily mediations in a purely affective state, the Thomistic notion of ‘returning to phantasms’ means that, after intellectually ‘grasping’ a universal and spiritual reality, cognition which is fully human must reconcretize such knowledge with recourse to intellectual and corporeal images.Footnote 44 This signifies the restoration of the reason’s ‘political’ (not ‘despotic’) rule over the passions and a proper participative reintegration of corporeal and spiritual powers within the body-soul composite constitutive of the human person.Footnote 45 Aquinas’s employment of clear and concrete imagery in his Eucharistic verses, coupled with his evident aversion to the identical anaphoric repetition and sustained apostrophic outbursts seen in Bonaventure and Iacopone, bespeak an understanding that ecstatic, ineffable speech from the part of the human being represents not the ‘end’ of mystical ascent but a provisional state which is consummated only with the return to concrete language. Franciscans like Bonaventure, on the other hand, speak of a much clearer dichotomy: to obtain the mystical climax described in Itinerarium mentis in Deum, the Seraphic Doctor urges his audience to ‘seek the groaning of prayer, not the study of lectures’.Footnote 46 While the Franciscans might reach for the total collapse and surpassing of human language and rationality in God, Aquinas understands mystical union to involve the perfective elevation of reason and language. With this Thomistic characterization of onomatopoeic and underdifferentiated vocal exclamations in mind, we can now consider a type of vocalization in the liturgy which bears close similarities to these types of pre-rational utterances – the melisma.
5. Melisma and the liturgy
Melisma, or the chanting of a single syllable over an extended melodic phrase, has enjoyed a particularly long-lasting interpretation which, beginning with Hilary of Poitiers and Augustine of Hippo, is thereafter diffused throughout Latin Christianity. For these Fathers, the melisma was called iubilus, for the ascending path of the melody signified the joyful ascent of the soul to God. Hilary, capable in both Greek and Latin, noted how the Septuagint term alalagmos – iubilus in the Vetus Latina – ‘means the non-verbal shouting of country-folk’, or more importantly ‘the war cry of an army pursuing the enemy underfoot, or the cry announcing the triumph of victory’.Footnote 47 Augustine, in his commentaries on the thirty-secondFootnote 48 and ninety-ninthFootnote 49 Psalms (Vetus Latina), considers this type of enunciation as signifying the ultimate inadequacy of human language as it rises to praise the ineffable God – an interpretation to become standard among the medievals. ‘Psalm commentaries’, writes James McKinnon, ‘from Cassiodorus in the sixth century to Gerhoh of Reichersberg in the twelfth, simply repeat at each occurrence of the word jubilare the basic idea of textlessness’.Footnote 50 For Amalarius of Metz, the eminent Carolingian liturgist who will influence almost all subsequent medieval Mass commentaries, the verse of the alleluia stirs the cantor within to consider why he should praise the Lord…. This jubilation, which the cantors call sequentia, calls to mind to that state of being where the speaking of words will not be necessary; rather, one mind will explain to another what it has within by thought alone’.Footnote 51
This wordless, direct transference of thought between persons suggests a distinctly angelic mode of communication, a theme explicitly adopted in a twelfth-century Mass commentary once attributed to Hugh of Saint-Victor. The Alleluia for this Pseudo-Hugonian author expresses ‘the glory which is none other than that of the eternal company of the angels and blessed spirits’; he then takes up Augustine’s notion that the melismatic neuma or iubilus is the apt expression of praise at the point where human words fail.Footnote 52 William Durandus, whose monumental Rationale divinorum officiorum represents a late thirteenth-century summation of the anterior commentarorial tradition, is worth mentioning. Durandus synthesizes many points from the previous authors: that the Alleluia is a conformity to angelic speech, that the Alleluia and its iubilus expresses ineffable joy, and that its melisma stirs the soul to ascend to God.Footnote 53 The textless, undifferentiated voicing which distinguishes the iubilus is thus almost univerally understood in the Latin tradition as sign of ecstatic, quasi-angelic ascent to God.
While Aquinas also interprets the Alleluia as a chant of exsultation,Footnote 54 he does not explicitly mention the melismatic iubilus. Nevertheless, he does recognize in another place the same Augustinian notion of prayerful speech which, through the intensity of devotion, can turn into ‘sighs and jubilations (iubilus) and untempered voicings’.Footnote 55 In line with the commentatorial tradition hitherto traced, and in light of the Thomstic reflections on language in the previous section, we can first observe that Aquinas does recognize a liturgical place for onomatopoeic and undifferentiated utterances, a notion which perhaps departs from the preference for linguistic concreteness seen in his cognitional theory and mystical theology. Still, just as Thomas construes the moment of abstraction (whether in natural cognition or in mystical union) as a provisional state which must be ‘completed’ by a return to phantasms and rational-linguistic clarity, the Alleluia iubilus likewise marks a provisional affective moment which must eventually yield to the concrete proclamation of the Gospel. Melisma, therefore, does not represent the peak of spiritual experience, but denotes a preparation for the reception and explication of determinate intellectual content.
By way of contrast, we can place into further relief the nature of the melismatic Alleluia by considering its replacement in Masses of mourning or penance, i.e., the Tract.Footnote 56 While for Aquinas the Tract signifies ‘spiritual groaning’, this groaning is not expressed through the melodious undifferentiated vocalization of a iubilus. Rather, the sense of grumbling is achieved through the Tract’s combination of ‘prolixity’ and ‘harsh voices’.Footnote 57 The Tract texts are often longer than an Alleluia verse, while the almost exclusive usage of either the second (Hypodorian) or eighth (Hypomixolydian) modes produce a plangency that reinforces the mourning character of seasons like Septuagesima and Lent. Thus, the melismatic elements, while present, are reduced on account of the Tract’s verbosity, and these often do not match the extensive ornamentation of the Alleluia iubilus. Because the Tract is a penitential text, the expressions of sorrow contained therein – just as in the tropes of Kyrie fons bonitatis – are pronounced clearly as in a truly contrite confession. Correctly recognizing and voicing one’s own penitence requires this concretization of language; here human tongues do not yet ascend to joyfully praise the ineffable God with quasi-angelic, highly affective outbursts, but first descend to a mode of speech more proper to the penitent’s wayfaring state.
6. Conclusion: reassessing the untroped Kyrie
Now we can address more precisely the consequences of excising troped texts from settings like Kyrie fons bonitatis. First, the removal of the tropes creates a sort of structural converse to the Tract; abandoning the unique petitions greatly extends the Kyrie melismas, which introduces something like the iubilus – and its joyful, quasi-angelic character – into what should properly be a ritual of penance, an act of humilityFootnote 58 which commemorates our present misery.Footnote 59 If, as argued above, penance should involve a concrete vocal recognition of one’s unworthiness before God, then the transformation of the troped penitential chants into settings dominated by extended melisma might risk obscuring their deprecatory content. Perhaps the ongoing development of the Roman Rite might look to fill this melismatic ‘gap’ by considering the variety of orthodox doctrinal expressions – like references to circumincession – proposed by the medieval tropes.
Even if we concede, as above, that the perichoretic Kyrie was never unique or archetypical for the genre, we can still affirm that, by the time of Thomas Aquinas, the widespread diffusion of Kyrie fons bonitatis and others like it – signals an eminent place for the Trinitarian-perichoretic interpretation of the Kyrie in the high medieval period. The Rationale of Durandus, completed only a few years after the death of his contemporary Aquinas, further confirms the eminence of this exegesis by the close of the thirteenth century.Footnote 60 If by this time the sensus litteralis missae includes this complex perichoretic theology of the Kyrie, one can thus speak of a true organic development in the liturgy, wherein a robust defense of Trinitarian theology – which had always been a Carolingian concern – reaches a sort of interpretative climax by the explicit invocation of circumincession within the structure of various troped Kyrie texts. Removing the tropes, even if the Kyrie is sung in the ninefold manner, recalls the state of the early Dominican liturgy’s adaptation of troped Mass cycles without the actual troped texts: the silent doctrinal elements remain present, but by implication only. This is more true for settings like Kyrie cum iubilo, for example, where the articulation of its Marian content is not necessarily dependent on the number of petitions. But in the case of perichoretic tropes like fons bonitatis and Pater cuncta, the ninefold structure is intrinsically tied to – and most fitting for – an explication of Trinitarian circumincession. Since the Kyriale already assigns the untroped Kyrie fons bonitatis for use ‘in festis solemnibus’,Footnote 61 utilization of its troped version might be an appropriate means for highlighting the underlying Trinitarian character of solemn liturgies.
We close by returning to the problem first identified in the beginning of this essay: the difficulty of mediating allegorical and literal interpretations of the liturgy. If, as we have argued, that the perichoretic nature of the Kyrie pertained to the sensus litteralis by the late thirteenth century – well after texts like fons bonitatis enjoyed wide circulation – then, in order to avert the perception of an allegorial interpretation not rooted in the Mass rites or otherwise imposed outside the process of organic development, perhaps it would be worth considering the reintroduction of troped texts like fons bonitatis and Pater cuncta into the celebration of the liturgy – even into potential future editions of the Missal of John XXIII. As a parallel development, modifications of the Pauline Missal might consider the ninefold troped Kyrie as a potential treasury of doctrinal content that would in fact break the current repetitiousness of the untroped Kyrie. Recourse to tropes in either the sixfold or ninefold form – a possibility left open by IGMR n. 52 – could serve as an avenue for authentic liturgical ressourcement Footnote 62 which would in turn explicitly reinforce the Trinitarian structure of all doxology, address the perceived ‘lack’ of pneumatology in Latin theology and liturgy,Footnote 63 and foster deeper contemplation of the Triune God, who is the source and terminus of all divine worship. For if ‘it is through the liturgy that Christians enter into the mystery of God the Trinity and find the light to live out their lives with God’,Footnote 64 then let our confession of sins in preparation for the Eucharist also be an explicit confession of our belief that, to quote Saint Thomas, omnes Personae sunt in se invicem.Footnote 65