God is not limited as those outside The Church seem to think, but is unlimited
God is NOT limited? Just sacrificed each and every mass in a liturgy so rigidly adhered to that I could still go in a mass decades later and recite along with it.
Besides, you show with that comment, that you really don't know what many Protestant worship services are like.
Christ died once and for all in space-time for our sins. It’s a common mistake to always equate sacrifice with death. To understand the sacrifice of the Mass, it is essential that one understand the biblical picture of a sacrifice: It is always a gift; it is not always a killing. This is why Scripture can speak of a sacrifice of praise (Hos. 4:12) and the sacrifice of thanksgiving (Ps. 50:14).
Christ’s bloody sacrifice on Calvary took place once, and it will never be repeated. To repeat his sacrifice would be to imply that the original offering was defective or insufficient, like the animal sacrifices of the Old Testament that could never take away sins. Jesus’ offering was perfect, efficacious, and eternal.
Jesus is eternally a priest, and a priest’s very nature is to offer sacrifice. In the case of Christ, the eternal sacrifice that he offers is himself. This is why he appears in the book of Revelation as a lamb, standing as though he had been slain (Rev. 5:6). He appears in heaven in the state of a victim not because he still needs to suffer but because for all eternity he re-presents himself to God appealing to the work of the cross, interceding for us (Rom 8:34), and bringing the graces of Calvary to us.
The Mass is a participation in this one heavenly offering. The risen Christ becomes present on the altar and offers himself to God as a living sacrifice. Like the Mass, Christ words at the Last Supper are words of sacrifice, "This is my body . . . this is my blood . . . given up for you." So, the Mass is not repeating the murder of Jesus, but is taking part in what never ends: the offering of Christ to the Father for our sake (Heb 7:25, 9:24). After all, if Calvary didn’t get the job done, then the Mass won’t help. It is precisely because the death of Christ was sufficient that the Mass is celebrated. It does not add to or take away from the work of Christ—it is the work of Christ.
Isn’t it glorious — the Sacrifice is done, once and for all, the Eucharist is where we experience this once and for all time sacrifice. It’s the Real Presence! Where you experience the personal relationship with Christ in the Eucharist! Beautiful isn’t it, being in communion with the Lord in the Lord’s One Holy Apostolic Catholic Church?
Boy, and how!