Dave,
Ok, well done Dave except for the fact that you didn’t answer my question, but that’s up to you to decide if you will answer it or not. As I’ve decided to answer yours. I can’t and won’t find anything that the Magisterium says about sufficient grace since it is speculative theology as is your position, simply because the Magisterium has NEVER made a conclusive statement about the nature of grace and its effects upon the soul.
Catholic theologians as to what sufficient grace actually means.
Thomists and Molinists disagree,nevertheless, here’s what I found. Two different sources. The first is the Catholic Encyclopedia online.
www.newadvent.com specifically at
newadvent.org/cathen/06689x.htm an orthodox Catholic site written by theologians.
"A second pair of graces important for the understanding of the controversies on grace is that of efficacious and merely sufficient grace (
gratia efficax et mere sufficiens). By efficacious grace is understood that Divine assistance which, considered even
in actu primo, includes with infallible certainty, and consequently in its definition, the free salutary act; for did it remain inefficacious, it would cease to be efficacious and would therefore be self-contradictory. As to whether the infallibility of its success is the result of the physical nature of this grace or of the infallible foreknowledge of
God (
scientia media) is a much debated question between Thomists and Molinists which need not be further treated here. Its existence, however, is admitted as an article of faith by both sides and is established with the same firmness as the
predestination of the elect or the existence of a heaven peopled with innumerable saints. As to “merely sufficient grace”,
Calvinists and
Jansenists have, as is well known, eliminated it from their doctrinal system. They admitted only efficacious graces whose action overpowers the will and leaves no room for freedom. If Jansen (d. 1638) nominally admitted “sufficient grace”, calling it “little grace” (
gratia parva), he understood by it, in reality, only “insufficient grace”, i.e. “one from which no action can result, except its insufficiency be removed by another grace” (De grat. Christ., IV, x). He did not shrink from reviling sufficient grace, understood in the Catholic sense, as a monstrous conception and a means of filling
hell with reprobates, while later
Jansenists discovered in it such a pernicious character as to infer the appropriateness of the prayer: “a gratia sufficiente, libera nos Domine” (“From sufficient grace, O Lord deliver us”. – Cf. prop. 6 damn. ab Alex. VIII, a. 1690 in Denzinger, n. 1296).
The Catholic idea of sufficient grace is obtained by the distinction of a twofold element in every actual grace, its intrinsic energy (potestas agendi, vis) and its extrinsic efficiency (efficientia). Under the former aspect there exists between sufficient and efficacious grace, both considered in actu primo, no real, but only a logical, distinction; for sufficient grace also confers full power for action, but is condemned to unfruitfulness owing to the free resistance of the will. If, on the contrary, extrinsic efficiency be considered, it is evident that the will either co-operates freely or not . If it refuses its co-operation, even the strongest grace remains a merely sufficient one (gratia mere sufficiens) although by nature it would have been completely sufficient (gratia vere sufficiens) and with good will could have been efficacious. This ecclesiastical conception of the nature of sufficient grace, to which the Catholic systems of grace must invariably conform themselves, is nothing else but a reproduction of the teaching of the Bible. To cite only one text (Prov., i 24),…"
continued…