Whether man possessed of grace needs the help of grace in order to persevere?

Objections

Objection 1 : It would seem that man possessed of grace needs no help to persevere. For perseverance is something less than virtue, even as continence is, as is clear from the Philosopher (Ethic. vii, 7,9). Now since man is justified by grace, he needs no further help of grace in order to have the virtues. Much less, therefore, does he need the help of grace to have perseverance.
Objection 2 : Further, all the virtues are infused at once. But perseverance is put down as a virtue. Hence it seems that, together with grace, perseverance is given to the other infused virtues.
Objection 3 : Further, as the Apostle says (Rm. 5:20) more was restored to man by Christ's gift, than he had lost by Adam's sin. But Adam received what enabled him to persevere; and thus man does not need grace in order to persevere.