Yet a Roman Catholic priest says it is repeated over and over again. The RCC calls it a sacrifice. Cant have it both ways. Either Rome places him on the altar over and over to be sacrificed or Hebrews is wrong. I know which one I staying with.
Yet you seem to avoid the Catechism --- which IS authoritative --- like a wee little diablo avoids Holy Water.
Have you gone to the Catechism links yet?
He is the priest who does the sacrificing. The one and only.
He is the Lamb. The one and only.
The Lamb Who was "slain before the foundation of the world" (Rev. 13:8).
Yet this was singular, a one-time deal. He did this once. Get it?
It's something that happened once in time, which we also have access to because it existed from timeless eternity, which is ever-present to God's eyes. Before the foundation of the world. That means before Time.
We mortals ponder that.
In the Mass, we have access to it.
This is what trips us up in our limited human minds: we don't easily grasp that an event can be at once "in time" and "n eternity" --- like Christ's sacrifice.
It happened once; but since the Lamb was slain "from before the foundation of the world,", it is accessible in the present. Hence, the Mass.
You can only grasp it when you realize that here, time and eternity intersect.