Obi-Wan Kenobi wrote:
I'm afraid it's not that simple. Adam and Eve did not need to be saved, but to attain to the supernatural destiny of man, which is unity with God, they still needed the gift of sanctifying grace. The OP is asking whether that grace was given in view of the foreseen merits of Christ, or for some other reason.
Right. Traditionaly we distinguish betwee gratia Christi and gratia Creatoris. The grace merit by Christ, and the grace given by the creator prior to original sin. For Scotists even this gratia creatoris is a gratia Christi, Christ merited those original graces, as well as the graces given to the angels.
But in the Thomist view, as the Incarnation was predestined based on the need to redeem man, we distinguish the grace of Christ from that of the creator. The latter being simply the free gift of God to His creation. Though unworthy, the unwothiness was merely negative. We didn't earn it or merit it. But after the fall the unworthiness was positive, we not only did nothing to deserve it, we did things to make us not worthy.