Summa Theologiae Moralis, vol. I: De Principiis
Benedictus Henricus Merkelbach (1871–1942)
Summa Theologiae Moralis ad mentem D. Thomae et ad normam iuris novi
First published 1935
Volume I (De principiis) of Benedictus Henricus Merkelbach's Summa theologiae moralis sets out the foundations of Catholic moral theology within a Thomistic framework. It treats human acts, conscience, law, sin, and merit in relation to the canon law of its period. The present edition follows the Paris text published by Desclée de Brouwer in 1935 and includes the Latin text with an English translation. It comprises the first volume of the three-volume Summa.
Prologus
Introductio I: Theologia Moralis Generalis: Introductio
Tractatus I: Tractatus de ultimo actu humanorum fine seu de beatitudine
Introductio
Quaestio I: DE FINE ULTIMO IN COMMUNI
Quaestio II: DE BEATITUDINE OBIECTIVA
Quaestio III: DE BEATITUDINE FORMALI
Quaestio IV: DE QUALITATIBUS BEATITUDINIS
Quaestio V: DE MODO OBTINENDI BEATITUDINEM
Tractatus II: De actibus humanis in se
Introductio
Pars I: De actibus humanis secundum esse materiale et psychologicum
§ I: De conditione actuum humanorum
Caput I: De elemento subiectivo actus humani
Quaestio I: De voluntario
Articulus I: De voluntario in se
Articulus II: De voluntario tum positivo et directo, tum negativo et indirecto
Articulus III: De voluntario in se et in causa
Quaestio II: De impedimentis voluntarii seu de involuntario
Articulus I: De violentia
Articulus II: De metu
Articulus III: De concupiscentia
Articulus IV: De ignorantia
Quaestio III: De libero
Quaestio IV: De impedimentis liberi
Articulus I: De passionibus
Articulus II: De habitu et consuetudine
Articulus III: De impedimentis liberi remotioribus
Caput II: De elemento obiectivo actus humani
Quaestio I: De elemento essentiali seu obiecto
Quaestio II: De elemento accidentali seu de circumstantiis
§ II: De distinctione actuum humanorum
Quaestio I: De actibus elicitis
Quaestio II: De actibus imperatis
Pars II: De actibus humanis secundum esse morale
§ I: De moralitate actus humani in genere
Quaestio I: De essentia et speciebus moralitatis
Quaestio II: De fundamentis moralitatis
Articulus I: De intrinseca differentia boni inter et mali
Articulus II: De norma moralitatis
Articulus III: De fundamento obiectivo moralitatis
Articulus IV: De falsis systematibus circa fundamenta moralitatis
Articulus V: De facultate apprehensiva moralitatis
Quaestio III: De principiis seu fontibus moralitatis
Quaestio IV: De distinctione specifica inter actum bonum et malum
Quaestio V: De distinctione specifica inter varios actus bonos vel malos
Articulus I: De obiecto
Articulus II: De circumstantiis
Articulus III: De fine
§ II: De moralitate actuum humanorum in specie
Quaestio I: De bonitate et malitia actus interioris
Quaestio II: De bonitate et malitia actus exterioris
Quaestio III: De bonitate et malitia effectus externi
Quaestio IV: De bonitate et malitia passionum
Quaestio V: De bonitate et malitia circumstantiarum
Pars III: De actibus humanis secundum esse supernaturale et meritorium
Quaestio I: De merito praesertim supernaturali
Quaestio II: De conditionibus meriti supernaturalis
Tractatus III: De conscientia in generali
Introductio
Quaestio I: De conscientia morali secundum se in esse psychologico
Quaestio II: De conscientia prout est regula actuum moralium
Articulus I: De rectitudine conscientiae
Articulus II: De conscientiae certitudine
Quaestio III: De conscientia christiana prout est regula actuum supernaturalium
Tractatus IV: De legibus in genere
Introductio
§ I: De lege secundum esse psychologicum
Pars I: De lege in genere
Quaestio I: De ipsa lege in se
Articulus I: De essentia legis
Articulus II: De promulgatione legis
Quaestio II: De distinctione legum
Quaestio III: De effectibus legis
Articulus I: De vi directivâ seu obligatione legis
Articulus II: De vi coactivâ seu sanctione legis
Pars II: De lege aeterna quae est fundamentum omnis legis
Quaestio I: De essentia legis aeternae
Quaestio II: De potestate legis aeternae
Quaestio III: De mutabilitate legis aeternae
§ I: De legibus quae regunt actus morales
Pars III: De lege naturali
Quaestio I: De essentia legis naturalis
Quaestio II: De potestate legis naturalis
Articulus I: De vi directivâ seu obligatione legis naturalis
Articulus II: De vi coactivâ seu sanctione legis naturalis
Quaestio III: De mutabilitate legis naturalis
Quaestio IV: De Lege Humana in Se
Articulus I: De Auctore legis civilis
Articulus II: De Qualitate legis humanae
Articulus III: De Efformatione legis humanae
Articulus IV: De Divisione legis humanae
Quaestio V: De Potestate Legis Humanae
Articulus I: De Materia legis humanae
Articulus II: De Obligatione legis humanae
Articulus III: De Subditis legis civilis
Articulus IV: De Impletione et Interpretatione legis humanae
Quaestio VI: De Mutabilitate Legis Humanae
Caput I: De Lege Vetere
Quaestio I: De Lege Vetere Secundum Se
Quaestio II: De Potestate Legis Veteris
Quaestio III: De Mutabilitate Veteris Legis
Caput II: De Lege Nova
Quaestio I: De Essentia Legis Novae
Quaestio II: De Potestate Legis Novae
Quaestio III: De Lege Ecclesiastica Secundum Se
Articulus I: De Auctore legis ecclesiasticae
Articulus II: De Materia et Qualitate legis ecclesiasticae
Articulus III: De Efformatione legis ecclesiasticae
Articulus IV: De Divisione legis ecclesiasticae
Quaestio IV: De Potestate seu Obligatione Legis Ecclesiasticae
Articulus I: De Quantitate seu Gravitate Obligationis
Articulus II: De Qualitate et Extensione Obligationis legis praeceptivae
Articulus III: De Qualitate et Extensione Obligationis legis poenalis
Articulus IV: De Qualitate et Extensione Obligationis legis irritantis
Articulus V: De Subditis legis ecclesiasticae
Articulus VI: De Impletione legis ecclesiasticae
Articulus VII: De Interpretatione legis ecclesiasticae
Quaestio V: De Mutabilitate Legis Ecclesiasticae
Articulus I: De Ignorantia
Articulus II: De Impotentia
Articulus III: De Dispensatione
Articulus IV: De privilegio
Articulus V: De cessatione finis
Articulus VI: De abrogatione et derogatione
Articulus VII: De consuetudine
Tractatus V: De peccatis in genere
Introductio I: De Peccatis in Genere
Quaestio I: De essentia peccati
Articulus I: De notione et conditionibus peccati
Articulus II: De peccato omissionis negative voluntario
Articulus III: De peccato commissionis externo, indirecte aut in causa voluntario
Articulus IV: De elementis constitutivis peccati
Articulus V: De definitione peccati
Quaestio II: De distinctione peccatorum
Articulus I: De distinctione specifica
Articulus II: De distinctione numerica
Quaestio III: De comparatione et gravitate peccatorum
Quaestio IV: De subiecto peccati
Articulus I: De motibus seu peccatis sensualitatis
Articulus II: De consensu in delectationem seu de delectatione morosa
Articulus III: De consensu in actum seu de desiderio et gaudio
Pars I: De causis peccatorum
Quaestio I: De causis peccati interioribus
Articulus I: De ignorantia causa peccati ex parte rationis
Articulus II: De passione causa peccati ex parte appetitus sensitivi
Articulus III: De malitia causa peccati ex parte voluntatis
Quaestio II: De causis peccatorum exterioribus
Articulus I: De deo permittente
Articulus II: De diabolo tentante
Articulus III: De homine cooperante
Quaestio III: De peccato quod est causa alterius peccati
Articulus I: De modo quo unum peccatum alterum causat
Articulus II: De superbia et inani gloria
Articulus III: De avaritia
Articulus IV: De luxuria et gula
Articulus V: De invidia et ira
Articulus VI: De acedia
Pars II: De effectibus peccatorum
Quaestio I: De diminutione boni naturae
Quaestio II: De reatu culpae seu macula peccati
Quaestio III: De reatu poenae
Quaestio IV: De peccato mortali et veniali
Articulus I: De differentia inter peccatum mortale et veniale
Articulus II: De gravitate peccati mortalis
Articulus III: De conditionibus ad peccatum mortale requisitis
Articulus IV: De divisione peccati mortalis et venialis
Articulus V: De conversione peccati mortalis et venialis
Articulus VI: De peccato veniali secundum se
Tractatus VI: De habitibus et virtutibus in genere
Introductio I: De Habitibus et Virtutibus in Genere
Pars I: De habitibus in genere secundum esse psychologicum
Quaestio I: De essentia habitus
Quaestio II: De subiecto habitus
Quaestio III: De causa habituum
Quaestio IV: De distinctione habituum
Pars II: De habitibus secundum esse morale seu de virtutibus acquisitis
Quaestio I: De essentia virtutis
Quaestio II: De subiecto virtutis
Quaestio III: De distinctione virtutum
Articulus I: De virtutibus intellectualibus
Articulus II: De virtutibus moralibus
Articulus III: De virtutibus cardinalibus
Quaestio IV: De proprietatibus virtutum
Articulus I: De medio virtutis
Articulus II: De connexione virtutum
Articulus III: De aequalitate virtutum
Articulus IV: De duratione virtutum
Pars III: De habitibus secundum esse supernaturale seu de virtutibus infusis
Quaestio I: De existentia et essentia infusorum habituum ac virtutum
Quaestio II: De distinctione infusorum habituum et virtutum
Articulus I: De virtutibus theologicis
Articulus II: De virtutibus moralibus
Articulus III: De donis spiritus sancti
Quaestio III: De causa infusorum habituum et virtutum
Quaestio IV: De proprietatibus infusorum habituum et virtutum
Articulus I: De medio virtutum infusarum
Articulus II: De connexione habituum infusorum
Articulus III: De aequalitate habituum infusorum
Articulus IV: De duratione habituum infusorum
Tractatus VII: De fide divina
Introductio
Quaestio I: De Obiecto Formali Fidei
Quaestio II: De Obiecto Materiali Fidei
Articulus I: De obiecto materiali in se
Articulus II: De conditionibus ad obiectum materiale requisitis
Articulus III: De evolutione obiecti materialis
Articulus IV: De ecclesia proponente obiectum fidei
Pars I: De Actu Fidei
Caput I: De Actu Fidei Interiore
Quaestio I: De Essentia Actus Fidei
Quaestio II: De Analysi Actus Fidei
Articulus I: De ipso actu fidei
Articulus II: De ipso credulitatis affectu
Articulus III: De iudicio credibilitatis seu de praeambulis fidei
Quaestio III: De Necessitate Fidei
Caput II: De Actu Fidei Exteriore seu de Eius Confessione
ON THE EXTERIOR ACT OF FAITH OR ITS CONFESSION.
S. Th. II-II, q. 3.
711. Confession of faith is its external manifestation by some sign suited to this. It is the external act of the virtue of faith, because it is immediately produced by faith with no other habit mediating ; hence the confession of faith according to its object and species is directly ordered to faith as to an end.
From natural-divine law there is a precept, obligating under grave sin, of externally confessing the faith ; this precept is at once affirmative and negative (can. 1325, § 1).
712. Insofar as the precept of confessing faith is negative, it forbids, in any case whatever or even danger of death, expressly or tacitly, by word, sign, or deed (by silence, for example), externally to deny the faith or to profess or feign a false one. For he who acted thus would at least implicitly say either that God reveals false things or that He has not revealed the dogmas of the Christian faith, both of which are most injurious to God. Hence Christ : « But he who shall deny me before men, I will also deny him before my Father who is in heaven » (Mt. X, 32, 33 ; cf. Lk. IX, 26 ; XII, 8-9 ; 2 Tim. II, 12).
This can be done in two ways : a) directly and explicitly, when one knowingly denies the faith or professes a false one ; b) indirectly and implicitly, if without the intention of denying one performs an action which is taken by others as a denial of faith, such as assisting at or participating in heretical rites (e.g. to take part in a Calvinist supper).
Therefore they sin against faith : 1° by words, who openly, seriously or fictitiously, deny even one article of faith, or deny that they are Christians or Catholics, or say they are disciples of another sect (Old Catholics, rationalists, positivists, Mohammedans), or deny that they are Papists, Ultramontanes, Clericals, ... in regions where those words mean nothing but the Catholic religion ;
2° by deeds : who, to hide the faith, use the rites or ceremonies of false worship, such as to offer incense, to genuflect or sacrifice before an idol (S. C. de Pr. F. 12 Sept. 1645), to take part in a Calvinist supper, to use circumcision as a religious rite, etc.
3° likewise those who buy with money the testimony that they professed a false religion (libellatici) ;
4° likewise those who perform an action which of itself or by its circumstances signifies the profession of a false religion, e.g. to drink to the death of Papists or to the health of the enemies of the Church, to pray or sing with them, to give one's name to a heretical, schismatic, Masonic, anti-Catholic, or Bible society, for whatever reason ;
5° in general, those who use vestments, gestures of the hands, or signs specifically professing a false religion, such as sacred vestments which exhibit honor to the Prophet, an idol, etc. (S. C. P. F. 23 March 1844) and the insignia or professing signs of the Freemasons ;
6° in general, those who, when questioned about the faith by name and personally by a public authority, keep silent or use ambiguous words (which, e.g., are taken by the interrogator as a denial) : for this, because of the circumstances, is considered by common estimation as a denial or shame of the faith, on account of an imminent punishment (prop. 18 condemned by Innocent XI).
I said : in general, because, if by certain altogether peculiar circumstances it were manifest to all that these things were not a denial or shame of religion, e.g. if the silence were taken by those present rather as a confession of faith, or if the law openly established that no public authority may intrude itself into the conscience of citizens, it would not be illicit. When, however, it is done, it is left to prudent estimation to determine.
713. Insofar as the precept of confessing faith is affirmative, it prescribes, even with some danger of life, the external confession of faith, and indeed in a twofold case : 1) when by the omission of this confession, privatively great honor due to God would be withdrawn, or positively or by contrast God would be greatly injured ; hence not only those questioned about the faith who by their silence are taken as infidels ought to confess and procure great honor to God, but also he who sees sacred things trampled under foot by infidels or heretics is bound to prevent it if he can, and he who hears the faith being attacked ought to contradict if he can or impose silence on the attackers, or profess the faith, if these things are judged useful or profitable ; 2) when, by not confessing the faith, grave spiritual harm would arise to the neighbor, such as contempt of religion, perversion of the faithful, scandal, e.g. if, by someone's silence, others would believe that the faith was not true and be turned away from the faith, or long delayed, or not converted to the faith. Hence Rom. X, 9, 10 : « If you confess with your mouth the Lord Jesus, and believe in your heart, ... you shall be saved : for with the heart one believes unto justice, but with the mouth confession is made unto salvation ».
Faith itself obliges us to confess it, when, by omitting the confession, an injury is done to faith in God, or the neighbor is harmed.
714. Applications. — Since the affirmative precept does not oblige for always, hence in itself and in general, they do not sin, at least against faith, by words, signs, or deeds :
1° those who hide or dissemble the faith for a grave reason ;
2° those who, when questioned by a private person, out of contempt either keep silent or use equivocal words ;
3° those who deny or are silent about being priests, religious, etc. ;
4° a fortiori those who, so that they not be recognized as Catholics, eat meat, or do not assist at Mass, do not pray before or after meals, unless this were expressly demanded in hatred of religion, in disobedience to the Church, or in profession of a false sect ;
5° indeed those who, for a graver reason, use the clothing or signs of a nation, and even probably those distinctive only of a false religion ;
6° likewise those who flee in time of persecution (Mt. X, 23) ; pastors of souls are excepted, who would flee with spiritual harm to their flock (John X, 11) ;
7° those who buy with money that no harm be done them or inquiry made about their faith ;
8° those who, when the ruler orders Catholics to betray or appear, refuse to appear or betray themselves.
I say : in general, for if the foregoing actions, by special circumstances, were taken by others as a denial or shame of the faith, or if great honor would be withdrawn from God, or grave scandal would arise, they would be sinful against the faith and are to be given up. When, however, it is so, it is left to prudent estimation to determine.
715. Observations. — 1° From other precepts or virtues we are also in some way bound to the external confession of faith, e.g. in receiving Baptism (cf. Ritual) or another sacrament, by reason of external worship and adherence to the Church, by the precept of the Church (S. Off. 20 July 1859 ; can. 1406-1408), etc. But in those cases it is not the precept of faith itself which obliges us.
2° Sometimes faith must be hidden, whenever, the precept of confessing faith not being urgent, from its confession religion would be more blasphemed, or disturbances would arise, or danger of death would have to be undergone, or other grave harms would follow (S. Th., a. 2, ad 3).
3° On communication with infidels and heretics, will be spoken in the 4th part.
4° Noldin notes : « Wherever the political power forbids conversion to the true faith before a certain age (16 or 18), the law is impious, nor is it lawful, for one who is persuaded of the truth of the Catholic religion, to delay the profession of faith longer on account of the civil law. Pastors of souls are bound to admit to the profession of faith those who ask to be received into the bosom of the Church, notwithstanding any temporal evil to themselves or to others. However, to avoid the evils which would then threaten both the parish priest and the convert from the civil law, it can be permitted, by mutual consent, that the conversion be delayed to the lawful age, or that the conversion once made be hidden up to that age, if it is now close at hand » Th. M., II, n. 14. But internal adherence to the faith must be given at once, nor can it be delayed.
5° However, union with the Church and profession of faith of themselves ought to be public, nor ought they to be hidden at least perpetually, as the constant practice of the Church bears. Hence :
a) « Outside the case of necessity, it is not lawful for an adult to be baptized or to be admitted to conversion secretly, with only the priest knowing, but this must be done publicly before others, at least two witnesses. Therefore the Church prescribes that the abjuration of heresy, which is required of new converts, be made before two witnesses and the conversion made be entered in the parish books, both to satisfy the obligation of professing the faith and so that the convert may be subject to the jurisdiction of the Church in the external forum... »
b) Therefore it has been established that a Mohammedan cannot be admitted to Baptism who, on account of danger to his life, wishes to be a Christian secretly and remain so, but that he must transfer himself to places where he can publicly profess the Christian religion (S. C. de Prop. F. 28 May 1635).
c) In case of necessity, where namely a dying person for a reasonable grave cause refuses public conversion to the faith, he can be received into the Church by any priest whenever encountered, so that his salvation may be provided for, unless a reason of avoiding scandal or promoting the neighbor's salvation demands otherwise, as in a man of great dignity and authority. But even in this case the conversion can be made before only two witnesses, who can later make the matter known if necessary » (ibid., n. 16, 2 ; cf. S. Off. 25 July 1630).
d) Likewise « sometimes heretics or pagans, who wish to embrace the true faith but cannot do so without great temporal inconveniences, can be received into the bosom of the Church secretly before two discreet witnesses, (and that for a time hidden. But after conversion they can no longer perform acts which are a profession of heresy or paganism, e.g. receive the Protestant supper, contract marriage before a non-Catholic minister, wear signs indicating idolatry, etc. But they could perform other things which are not a direct profession of heterodox faith, e.g. visit heretical temples, attend (merely) a non-Catholic funeral, indeed once or twice attend a non-Catholic sermon, provided there is no danger of perversion or scandal » Prümmer, Th. M. I, n. 507, resol. 1.
6° Prümmer notes, ib., n. 507, 5 : « In practice it is not always easy to distinguish whether the hiding of faith is licit or not. Generally speaking, it is much better to profess the faith openly, because the harms arising from the profession are not usually as great as they appear at first sight. On the contrary, from the open profession of faith the greatest goods usually result, both for the one professing it and for others admiring his good example ».