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
Pars II: De Habitu Fidei
Quaestio I: De Ipsa Fide
Articulus I: De fide in ordine ad subiectum spectata
Articulus II: De fide spectata relative ad virtutes supernaturales
Articulus III: De fide spectata relative ad habitus intellectuales
Quaestio II: De habentibus fidem
Quaestio III: De causa et effectibus fidei
Quaestio IV: De donis fidei correspondentibus
Pars III: De vitiis et peccatis fidei oppositis
Quaestio I: De peccatis directe oppositis fidei
Articulus I: De infidelitate
Articulus II: De haeresi et apostasia
Quaestio II: De peccatis indirecte oppositis fidei
Articulus I: De communicatione cum infidelibus et haereticis
Articulus II: De cooperatione ad infidelitatem et haeresim
Articulus III: De lectione et evulgatione scriptorum prohibitorum
Articulus IV: De admissione vel professione doctrinae quae pro fide est periculosa
Quaestio III: De blasphemia quae opponitur confessioni fidei
Pars IV: De praecepto fidei
Quaestio I: Quaestio unica
Tractatus VIII: De spe divina
Introductio
Pars I: De obiecto et actu spei
Quaestio I: De obiecto formali spei
S. Th. II-II, q. 17, a. 1 and 4; de Virt., q. 4, a. 1.
799. Thesis. The formal object of hope is the helping omnipotence of God. — The formal object of hope is that on account of which we hope for that which we hope. Now we hope for something because it seems to us possible of attainment; but something is possible for us in two ways, either by our own power or by the power or help of another. Whence by divine hope we hope on account of the divine power or help. Now: 1) The divine power or help, i.e. the attribute by which God assists us, is the helping virtue of God, or the very omnipotence of God inasmuch as in fact he helps us. For if we ask anyone: why do you hope for beatitude? he will rightly answer: because God is ready to assist us; and if we ask: by what does he assist us? he will answer: by his power. Whence the Scriptures constantly indicate as the motive of hope the help and strength of God (Gen. XV, 1; Ps. XVII, 3; LVI, 2; LXI, 7; CXVIII frequently; Is. XXVI, 4; II Reg. XXII, 3; Prov. XVIII, 10; II Cor. IX, 8; C. Trid., sess. 6, c. 13).
2) However, the omnipotence of God would not help us unless God were benign and merciful (good toward us). Whence the Scriptures sometimes ground hope in divine mercy (Ps. XII, 6; LI, 10; CXVIII).
3) Likewise we would not be certain nor firmly hope that God's power helps us, unless he had promised it and were faithful in his promises. Whence the Scriptures ground the certitude of hope in fidelity (Heb. X, 23; Tit. I, 2).
Hence theologians say that the formal object of hope is helping omnipotence, inasmuch as it supposes the benignity of God by which it is moved and commanded, and inasmuch as it supposes the fidelity by which it is bound to help us. The last and immediate motive of hope however is helping omnipotence alone.
Aptly S. Thomas, Q. D. de Virt. 4, a. 1:
"Something is possible to be had from someone in two ways: in one way through one's own power; in another way through the help of another... Thus therefore sometimes a man hopes to obtain something through his own power, sometimes through the help of another... And then it is necessary that the movement of hope be carried to two objects, namely to the good to be obtained, and to him by whose help he is supported ("The good, which someone hopes to obtain, he says in II-II, q. 17, a. 4, has the notion of final cause, but the help by which someone hopes to obtain that good has the notion of efficient cause"). But the supreme good which is eternal beatitude man cannot obtain except through divine help... and therefore the hope of obtaining eternal life has two objects, namely eternal life itself, which one hopes for, and the divine help from which he hopes. Just as also faith has two objects, namely the thing which he believes, and the first truth (in saying) to which it corresponds. Faith however does not have the notion of virtue except inasmuch as it adheres to the testimony of the first truth... Whence also hope has the notion of virtue from this very fact that man adheres to the help of divine power for obtaining eternal life..."
800. Corollaries on various opinions not to be approved. — From the aforesaid it is easy to understand what is to be thought of the various opinions of theologians, who labor much in designating the divine attribute which functions as the formal object of hope.
a) Others simply say it is the omnipotence of God1. — But that we expect something from God, it is not enough that God be able to bring us help to obtain it, but it is also required that he in fact bring it and help us. Whence the formal object taken comprehensively is not omnipotence, considered in itself and as it were abstractly, but only inasmuch as in fact it is helping.
b) Others hold it to be divine mercy2. — But although mercy moves God to bring help, it is not however that by which he immediately helps us and assists us; but this is his power. For if a merciful one wished to bring help, but did not have the power to do so, all hope would become impossible; on the contrary, if without benignity he could help and in fact did help: whether he helped out of mercy or not, provided however that he helped, hope would equally remain.
c) Others say it is God's fidelity in his promises3. — But again fidelity is not that by which he immediately brings help to us, although it gives certitude and firmness to hope. For if a faithful God wished to fulfill his promises, but did not have the power, hope would be impossible; on the contrary, even if God had promised nothing or were not faithful in his promises, provided it appeared with some probability to be likely that he would help by his power, this would be a sufficient foundation for hoping, although this hope would not be certain.
d) Others, especially the most recent with S. Alphonsus, hold that those three together constitute the formal object4. — But these do not solve the knot of the question, nor do they touch it. For 1) of every habit, as also of every act, there is only one formal object and proximate motive; whence it is impossible that these three equally principally concur to the motive of hope. Moreover 2) if from these three one formal object is to be constituted, it must still be shown how they concur into one, which the aforesaid authors do not sufficiently or even in no way indicate; furthermore this cannot be done otherwise than in the way indicated above, inasmuch as God's mercy moves omnipotence to help and this is entirely certain from his fidelity.
It remains therefore that helping omnipotence alone, which is commanded by God's mercy and executes his fidelity, is the formal object and immediate motive of hope: mercy namely and fidelity are rather the reason why omnipotence helps than why we hope. — Or also these two are necessary for hope as a preamble, just as the motives of credibility are the preamble of faith; but they are not the motive of hope itself.
e) Others finally do not indicate a divine attribute as the formal object of hope, but speak too soberly by assigning only divine help5. — This however is not to be understood as the help of the creation of grace: for that is something which we hope for, and pertains to the material object; — and besides, nothing created can be the motive of a theological or divine virtue (cfr. n. 669). It remains therefore that help is understood as uncreated, and this in turn is nothing other than helping omnipotence (q. 18, a. 4, ad 2; q. 17, a. 6, ad 3).
801. The proper motive of hope is not God as our supreme good. — Scotus teaches, whom Suarez follows, that the motive of hope is God inasmuch as he is our supreme good6, or the goodness of God relative to us7, i.e. the infinite perfection of God inasmuch as, possessed by us, it perfectly satisfies our appetite and fulfills all our desires. — This indeed is the motive of the love of concupiscence and of desire, which are necessarily presupposed by hope (as a preamble) and are virtually included in it; for we covet and desire God because to possess him is for us good and delectable. But this is not the motive of the act which is proper to hope, and which adds above desire the expectation of a beatitude which is difficult to obtain. For that which is difficult to obtain, we nevertheless hope for, on account of the power of him by whose power we can obtain it.
802. Secondary motives of hope. — The power of God alone is the principal efficient cause which leads us to beatitude; whence from him alone, as from the principal cause or from the first moving cause, can we hope. But God uses creatures as instruments by which he helps us in some way toward beatitude. From creatures therefore, as from secondary and instrumental causes, acting under God, we can hope for some help toward obtaining the goods ordered to beatitude.
In which way 1) we hope on account of the merits of Christ, our head, in view of which God promised eternal life and the helps thereto (C. Trid. sess. 6, c. 3 and 7); moreover through his virtue we must ask all things from God;
2) we hope on account of the prayers and merits of the Saints, especially of the B. V. M. as mediatrix; indeed on account of the prayers and helps of men living on earth, and therefore we ask something from them;
3) we hope on account of our own merits, inasmuch as they are from grace and are God's gifts; not indeed that they are so much the motive of hoping, but because they are dispositions required, in order that we may arrive at eternal life (C. Trid. sess. 6, c. 16, can. 26).
However, the power of God alone is the formal object of hope: for the merits of Christ, of the Saints, or of the one hoping himself do not help us, nor therefore move us to hope, unless they depend on the very omnipotence of God, which uses them and from which they have their efficacy, and which remains the foundation on which our hope rests.