All of which flies against Hebrews 9 (IIRC) that notes Christ is a one time sacrifice.
And He's still seated at the Father's side. He has not left Heaven and does not do so to be sacrificed again.
The priest does God’s will as told to us by Jesus.
The Eucharist is a true sacrifice, not just a commemorative meal, as “Bible Christians” insist. The first Christians knew that it was a sacrifice and proclaimed this in their writings. They recognized the sacrificial character of Jesus’ instruction, “Do this in remembrance of me” (Touto poieite tan eman anamnasin; Luke 22:19, 1 Cor. 11:24–25) which is better translated “Offer this as my memorial offering.”
Thus, Protestant early Church historian J. N. D. Kelly writes that in the early Church “the Eucharist was regarded as the distinctively Christian sacrifice. . . . Malachi’s prediction (1:10–11) that the Lord would reject Jewish sacrifices and instead would have “a pure offering” made to him by the Gentiles in every place was seized upon by Christians as a prophecy of the Eucharist. TheDidache indeed actually applies the term thusia, or sacrifice, to the Eucharist. . . .
“It was natural for early Christians to think of the Eucharist as a sacrifice. The fulfillment of prophecy demanded a solemn Christian offering, and the rite itself was wrapped in the sacrificial atmosphere with which our Lord invested the Last Supper.