Whether Christ's Passion brought about our salvation efficiently?

Objections

Objection 1 : It would seem that Christ's Passion did not bring about our salvation efficiently. For the efficient cause of our salvation is the greatness of the Divine power, according to Is. 59:1: "Behold the hand of the Lord is not shortened that it cannot save." But "Christ was crucified through weakness," as it is written (2 Cor. 13:4). Therefore, Christ's Passion did not bring about our salvation efficiently.
Objection 2 : Further, no corporeal agency acts efficiently except by contact: hence even Christ cleansed the leper by touching him "in order to show that His flesh had saving power," as Chrysostom [*Theophylact, Enarr. in Luc.] says. But Christ's Passion could not touch all mankind. Therefore it could not efficiently bring about the salvation of all men.
Objection 3 : Further, it does not seem to be consistent for the same agent to operate by way of merit and by way of efficiency, since he who merits awaits the result from someone else. But it was by way of merit that Christ's Passion accomplished our salvation. Therefore it was not by way of efficiency.