Given from the Catholic Broadcasting Station 2SM Sydney Australia
Choose a topic from Vol 3:
Jesus Christ Himself instituted and celebrated the first Mass at the Last Supper on the night before He died.
From the very beginning of the human race, men have rendered to God the worship of prayer and sacrifice. Thus Abel, the son of our first parents, offered sacrifice to God. When the Jews were liberated from Egypt, they were told by God to sacrifice a lamb without blemish, and every year afterwards until the coming of Christ, a lamb was sacrificed at Paschal time, as a commemoration of God's goodness to the Jews, and as a type of the sacrifice of Jesus on the Cross, the true Lamb of God who liberated the souls of men from the captivity of sin. Many other secondary sacrifices of expiation and purification also characterized the worship of the Jews, before Christ. The tradition of sacrifice also persisted amongst the nations who did not belong to the chosen people of God, and even when they had drifted into paganism, they still regarded sacrifice as essential to religion.
The Sacrifice of the Mass does not take the place of that on Calvary. Far from supplanting it, it supposes it; and the Mass would have no value apart from the Sacrifice of the Cross. That Sacrifice was the one absolute Sacrifice. The Mass is substantially that same Sacrifice, not another. It is the same priesthood of Christ offering the same Victim, Himself; and for the same purpose. In the Mass, Christ merely offers Himself in a new way, applying the fruits of Calvary to those present, and to all for whom the Mass is offered. Far from diminishing the efficacy of Calvary, it manifests that efficacy.