Whether Christ was Himself both priest and victim?

Objections

Objection 1 : It would seem that Christ Himself was not both priest and victim. For it is the duty of the priest to slay the victim. But Christ did not kill Himself. Therefore He was not both priest and victim.
Objection 2 : Further, the priesthood of Christ has a greater similarity to the Jewish priesthood, instituted by God, than to the priesthood of the Gentiles, by which the demons were worshiped. Now in the old Law man was never offered up in sacrifice: whereas this was very much to be reprehended in the sacrifices of the Gentiles, according to Ps. 105:38: "They shed innocent blood; the blood of their sons and of their daughters, which they sacrificed to the idols of Chanaan." Therefore in Christ's priesthood the Man Christ should not have been the victim.
Objection 3 : Further, every victim, through being offered to God, is consecrated to God. But the humanity of Christ was from the beginning consecrated and united to God. Therefore it cannot be said fittingly that Christ as man was a victim.