Whether Christ's Resurrection is the cause of the resurrection of our bodies?

Objections

Objection 1 : It would seem that Christ's Resurrection is not the cause of the resurrection of our bodies, because, given a sufficient cause, the effect must follow of necessity. If, then, Christ's Resurrection be the sufficient cause of the resurrection of our bodies, then all the dead should have risen again as soon as He rose.
Objection 2 : Further, Divine justice is the cause of the resurrection of the dead, so that the body may be rewarded or punished together with the soul, since they shared in merit or sin, as Dionysius says (Eccles. Hier. vii) and Damascene (De Fide Orth. iv). But God's justice must necessarily be accomplished, even if Christ had not risen. Therefore the dead would rise again even though Christ did not. Consequently Christ's Resurrection is not the cause of the resurrection of our bodies.
Objection 3 : Further, if Christ's Resurrection be the cause of the resurrection of our bodies, it would be either the exemplar, or the efficient, or the meritorious cause. Now it is not the exemplar cause; because it is God who will bring about the resurrection of our bodies, according to Jn. 5:21: "The Father raiseth up the dead": and God has no need to look at any exemplar cause outside Himself. In like manner it is not the efficient cause; because an efficient cause acts only through contact, whether spiritual or corporeal. Now it is evident that Christ's Resurrection has no corporeal contact with the dead who shall rise again, owing to distance of time and place; and similarly it has no spiritual contact, which is through faith and charity, because even unbelievers and sinners shall rise again. Nor again is it the meritorious cause, because when Christ rose He was no longer a wayfarer, and consequently not in a state of merit. Therefore, Christ's Resurrection does not appear to be in any way the cause of ours.
Objection 4 : Further, since death is the privation of life, then to destroy death seems to be nothing else than to bring life back again; and this is resurrection. But "by dying, Christ destroyed our death" [*Preface of Mass in Paschal Time]. Consequently, Christ's death, not His Resurrection, is the cause of our resurrection.