Articulus I
Whether God Alone Is the Cause of Grace?
Arg. 1 Objection 1
Ad primum sic proceditur. Videtur quod non solus Deus sit causa gratiae. Dicitur enim Ioan. I, gratia et veritas per Iesum Christum facta est. Sed in nomine Iesu Christi intelligitur non solum natura divina assumens, sed etiam natura creata assumpta. Ergo aliqua creatura potest esse causa gratiae.
It would seem that God alone is not the cause of grace. For it is written (John 1:17): "Grace and truth came by Jesus Christ." Now, by the name of Jesus Christ is understood not merely the Divine Nature assuming, but the created nature assumed. Therefore a creature may be the cause of grace.
Arg. 2 Objection 2
Praeterea, ista differentia ponitur inter sacramenta novae legis et veteris, quod sacramenta novae legis causant gratiam, quam sacramenta veteris legis solum significant. Sed sacramenta novae legis sunt quaedam visibilia elementa. Ergo non solus Deus est causa gratiae.
Further, there is this difference between the sacraments of the New Law and those of the Old, that the sacraments of the New Law cause grace, whereas the sacraments of the Old Law merely signify it. Now the sacraments of the New Law are certain visible elements. Therefore God is not the only cause of grace.
Arg. 3 Objection 3
Praeterea, secundum Dionysium, in libro Cael. Hier., Angeli purgant et illuminant et perficiunt et Angelos inferiores et etiam homines. Sed rationalis creatura purgatur, illuminatur et perficitur per gratiam. Ergo non solus Deus est causa gratiae.
Further, according to Dionysius (Coel. Hier. iii, iv, vii, viii), "Angels cleanse, enlighten, and perfect both lesser angels and men." Now the rational creature is cleansed, enlightened, and perfected by grace. Therefore God is not the only cause of grace.
Sed contra On the contrary
Sed contra est quod in Psalmo LXXXIII dicitur, gratiam et gloriam dabit dominus.
On the contrary, It is written (Ps. 83:12): "The Lord will give grace and glory."
Respondeo I answer that
Respondeo dicendum quod nulla res agere potest ultra suam speciem, quia semper oportet quod causa potior sit effectu. Donum autem gratiae excedit omnem facultatem naturae creatae, cum nihil aliud sit quam quaedam participatio divinae naturae, quae excedit omnem aliam naturam. Et ideo impossibile est quod aliqua creatura gratiam causet. Sic enim necesse est quod solus Deus deificet, communicando consortium divinae naturae per quandam similitudinis participationem, sicut impossibile est quod aliquid igniat nisi solus ignis.
I answer that, Nothing can act beyond its species, since the cause must always be more powerful than its effect. Now the gift of grace surpasses every capability of created nature, since it is nothing short of a partaking of the Divine Nature, which exceeds every other nature. And thus it is impossible that any creature should cause grace. For it is as necessary that God alone should deify, bestowing a partaking of the Divine Nature by a participated likeness, as it is impossible that anything save fire should enkindle.
Ad 1 Reply to Objection 1
Ad primum ergo dicendum quod humanitas Christi est sicut quoddam organum divinitatis eius; ut Damascenus dicit, in III libro. Instrumentum autem non agit actionem agentis principalis propria virtute, sed virtute principalis agentis. Et ideo humanitas Christi non causat gratiam propria virtute, sed virtute divinitatis adiunctae, ex qua actiones humanitatis Christi sunt salutares.
Christ's humanity is an "organ of His Godhead," as Damascene says (De Fide Orth. iii, 19). Now an instrument does not bring forth the action of the principal agent by its own power, but in virtue of the principal agent. Hence Christ's humanity does not cause grace by its own power, but by virtue of the Divine Nature joined to it, whereby the actions of Christ's humanity are saving actions.
Ad 2 Reply to Objection 2
Ad secundum dicendum quod, sicut in ipsa persona Christi humanitas causat salutem nostram per gratiam, virtute divina principaliter operante; ita etiam in sacramentis novae legis, quae derivantur a Christo, causatur gratia instrumentaliter quidem per ipsa sacramenta, sed principaliter per virtutem spiritus sancti in sacramentis operantis; secundum illud Ioan. III, nisi quis renatus fuerit ex aqua et spiritu sancto, et cetera.
As in the person of Christ the humanity causes our salvation by grace, the Divine power being the principal agent, so likewise in the sacraments of the New Law, which are derived from Christ, grace is instrumentally caused by the sacraments, and principally by the power of the Holy Ghost working in the sacraments, according to John 3:5: "Unless a man be born again of water and the Holy Ghost he cannot enter into the kingdom of God."
Ad 3 Reply to Objection 3
Ad tertium dicendum quod Angelus purgat, illuminat et perficit Angelum vel hominem, per modum instructionis cuiusdam, non autem iustificando per gratiam. Unde Dionysius dicit, VII cap. de Div. Nom., quod huiusmodi purgatio, illuminatio et perfectio nihil est aliud quam divinae scientiae assumptio.
Angels cleanse, enlighten, and perfect angels or men, by instruction, and not by justifying them through grace. Hence Dionysius says (Coel. Hier. vii) that "this cleansing and enlightenment and perfecting is nothing else than the assumption of Divine knowledge."