“If Adam had been created upright (rectus ) and without defects (sine ullo uitio ), how could he possibly lack the gift of final perseverance? Augustine responds by saying that Adam was not lacking in this respect, but that he lost that gift when he fell from the state of grace in which God has created him. Moreover, the real difficulty arises as the logical consequence of the first statement, viz. : if Adam was perfect, how could he, in fact, lose his perfection, and sin against God?
“Analogously [to the angels], the first man, had he so willed could have remained in his original state of uprightness (rectitude) and bliss (beatitudo) without any defects or faults. Had he stood firm using his free will in accordance with God’s plan, instead of abusing the gift God had given, he too would have received, like the angels who did not rebel against God, eternal, perfect bliss and happiness of resting in God’s beneficent regard. Having freely abandoned God, Adam was condemned to be abandoned by God, together with his heirs who share in his sin.”
“Since the time of Adam’s fall and condemnation in which all men became obstricti, only Christ’s redemptive and gratuitous death is able to save those predestined, through God’s design, for salvation. This redemptive grace is great but at the same time different (magna, sed dis parem) from the gratia laeta …Mankind then requires not so much a laetior gratia as a potentior gratia, a more powerful grace than that given to Adam, namely the grace that comes only from the incarnate Son of God, Christ the Savior, through whom human beings are enabled to overcome the sinful desires of the flesh…the grace accorded to Adam was ultimately dependent on his own free will which having been perfectly created, was able to decide whether to remain in perfection and persevere in justice of abandon it. The grace accorded to Adam’s heirs through Christ, instead is more powerful (plus potest), not only because it gives man the possibility of doing good and persevering in it, but above all because it makes him desirous of that same good.”
“In Augustine’s eyes, divine grace is ‘one’, even though it operates on different levels (or regimes, temps), and is per se efficacious at any stage. Adam was left completely free in his decision for good or evil, and yet could not have desired and chosen good, nor persevered in it, except under the sovereign influence of God’s bountiful grace. On the other hand, the internal action exercised by Christ’s grace on Adam’s descendants, an action which has to be sought ‘plus loin,-et plus bas’, possesses the prodigious feature of providing fallen human nature with the capability of following righteousness in an unquestionable and unfailing manner. This does not mean that the human being remains passive before grace, but certainly, de facto, he remains a secondary co-operator, subordinate and subservient to the agency of grace…In other words, if primordial operative grace did preserve intact the human (and angelic) ability to obey or disobey the will of God, in Adam’s heirs, this ability would seem to be overshadowed from the beginning by the ‘Christic’ grace, the direct cause of mankind’s desire for good and of its perseverance in it.”