Chapter 5.—To Believe is to Think with Assent.
And, therefore, commending that grace which is not given according to any merits, but is the cause of all good merits, he says, “Not that we are sufficient to think anything as of ourselves, but our sufficiency is of God.”16 2 Cor. iii. 5. Let them give attention to this, and well weigh these words, who think that the beginning of faith is of ourselves, and the supplement of faith is of God. For who cannot see that thinking is prior to believing? For no one believes anything unless he has first thought that it is to be believed. For however suddenly, however rapidly, some thoughts fly before the will to believe, and this presently follows in such wise as to attend them, as it were, in closest conjunction, it is yet necessary that everything which is believed should be believed after thought has preceded; although even belief itself is nothing else than to think with assent. For it is not every one who thinks that believes, since many think in order that they may not believe; but everybody who believes, thinks,—both thinks in believing and believes in thinking. Therefore in what pertains to religion and piety (of which the apostle was speaking), if we are not capable of thinking anything as of ourselves, but our sufficiency is of God, we are certainly not capable of believing anything as of ourselves, since we cannot do this without thinking; but our sufficiency, by which we begin to believe, is of God. Wherefore, as no one is sufficient for himself, for the beginning or the completion of any good work whatever,—and this those brethren of yours, as what you have written intimates, already agree to be true, whence, as well in the beginning as in the carrying out of every good work, our sufficiency is of God,—so no one is sufficient for himself, either to begin or to perfect faith; but our sufficiency is of God. Because if faith is not a matter of thought, it is of no account; and we are not sufficient to think anything as of ourselves, but our sufficiency is of God.
5. Et ideo commendans istam gratiam, quae non datur secundum aliqua merita, sed efficit omnia bona merita: Non quia idonei sumus, inquit, cogitare aliquid quasi ex nobismetipsis, sed sufficientia nostra ex Deo est (II Cor. III, 5). Attendant hic, et verba ista perpendant, qui putant ex nobis esse fidei coeptum, et ex Deo esse fidei supplementum. Quis enim non videat, prius esse cogitare quam credere? Nullus quippe credit aliquid, nisi prius cogitaverit esse credendum. 0963 Quamvis enim raptim, quamvis celerrime credendi voluntatem quaedam cogitationes antevolent, moxque illa ita sequatur, ut quasi conjunctissima comitetur; necesse est tamen ut omnia quae creduntur, praeveniente cogitatione credantur. Quanquam et ipsum credere, nihil aliud est, quam cum assensione cogitare. Non enim omnis qui cogitat, credit; cum ideo cogitent plerique, ne credant: sed cogitat omnis qui credit, et credendo cogitat, et cogitando credit. Quod ergo pertinet ad religionem atque pietatem (de qua loquebatur Apostolus), si non sumus idonei cogitare aliquid quasi ex nobismetipsis, sed sufficientia nostra ex Deo est; profecto non sumus idonei credere aliquid quasi ex nobismetipsis, quod sine cogitatione non possumus, sed sufficientia nostra qua credere incipiamus, ex Deo est. Quocirca, sicut nemo sibi sufficit ad incipiendum vel perficiendum quodcumque opus bonum; quod jam isti fratres, sicut vestra scripta indicant (In Epistola Hilarii, n. 2, supra, col. 953-954), verum esse consentiunt; unde in omni opere bono et incipiendo et perficiendo sufficientia nostra ex Deo est: ita nemo sibi sufficit vel ad incipiendam vel ad perficiendam fidem, sed sufficientia nostra ex Deo est: quoniam fides si non cogitetur, nulla est; et non sumus idonei cogitare aliquid quasi ex nobismetipsis, sed sufficientia nostra ex Deo est.