The Mass ! What is the Mass. The Mass, in one word, is the very same "Sacrifice as that of the Cross"The High Priest in the Mass is the same Jesus Christ; the Victim offered up in the Mass the same Jesus Christ. The same Precious Blood is offered in atonement on the Cross and on the altar . The Mass is not a simple representation; it is the essence, the truth, and reality of Calvary. The Council of Trent says (Sess.xxii.c. 2.): "The same Christ is contained and immolated [on the altar] in an unbloody manner who once offered himself in a bloodly manner at the Cross." The only difference in the manner of offering. On the Cross, Jesus offered his blood, and actually died; on the altar the same Jesus offers the same blood and actually died; on the altar the same Jesus offers the same blood, and mystically dies;

The Adorable Sacrifice of the Mass

The Lord hath sworn, and will not repent, thou art a priest forever according to the order of Melchisedech ."--(Heb.vii..21.)

SECTION I

THE ADORABLE SACRIFICE OF THE MASS

SECTION II.

THE FOUR ENDS FOR WHICH EVERY MASS US SAID

SECTION III.

HOW TO HEAR MASS DEVOUTLY

SECTION IV.

THREE SINS AGAINST THE LOVE OF JESUS IN THE HOLY SACRIFICE.

SECTION V.

DAILY MASS

SECTION I.

THE ADORABLE SACRIFICE OF THE MASS

The dogmatic proofs put forward in the last chapter have, we are fully conscience, but imperfectly dealt with the points discussed. Space obliged us more or less, to sacrifice clearness. Devotion, as we before remarked, not controversy, is our aim; to try to warn and increase, by the grace of God, love of Jesus in the Blessed Sacrament in the hearts of those who believe. We now come to the "Adorable Sacrifice of the Altar—the Mass. Well may we distrust ourselves in presuming to write about this "tremendous mystery." Let us invoke God's help in proceeding with our humble task.
Sacrifice is an external act of supreme religious worship given to God alone. In our hearts we adore and praise God; but by sacrifice we pay external outward homage to the Deity. We confess God the Sovereign Lord and Master of all creation—of life and of death. We profess our entire subjection to him, and total dependence on his gracious Providence. The light of reason and the laws of nature engraven by God on the human heart, point out sacrifice as an essential part of the worship of the supreme being. Hence we find that all nations, however barbarous, adored the deity, whether true or false, by sacrifice. In the true faith, from the beginning of the world to the end, sacrifice has never ceased, an never shall cease. 

In the Old Testament, the patriarchs worshiped the true God by sacrifice. Witness that Abel (Gen.v.) of Noah (Gen. Viii); of Melchisedech (Gen. Xiv.); of Abraham (Gen. v.) as also of holy Job, David, Solomon, and many others. The sacrifices of the old law consisted cheifly of living creatures, such as lambs, oxen, goats, etc. and sometimes of inanimate things, such as fine flour, oil, cakes, etc., and the bread and wine of Melchisedech. These sacrifices had no intrinsic value of themselves. St. Paul calls them "poor and weak elements," incapable of cancelling sin or conferring grace. "It is impossible that the blood of oxen and goats sins should be taken away." --(Heb. x.4.). "Shall I, said the Lord, eat the flesh of of bullocks, or shall I drink the blood of goats?" "With burnt offerings thou shaltnot be delighted."--(Ps. xlix.13; I.18.) They were but mere types and figures of great sacrifice of the New Law, and from this alone they derived all their value and became pleasing to God. The Victims slain, and the blood offered on the altar, were types of the bloodly sacrifice of Jesus Christ on Mount Calvary, and of the unbloody one of Jesus on the altar. On Calvary the Victim of infinite value, Jesus Christ, was slain' his blood offered up in atonement, and for all mankind redeemed.
The Mass ! What is the Mass. The Mass, in one word, is the very same "Sacrifice as that of the Cross"The High Priest in the Mass is the same Jesus Christ; the Victim offered up in the Mass the same Jesus Christ. The same Precious Blood is offered in atonement on the Cross and on the altar . The Mass is not a simple representation; it is the essence, the truth, and reality of Calvary. The Council of Trent says (Sess.xxii.c. 2.): "The same Christ is contained and immolated [on the altar] in an unbloody manner who once offered himself in a bloodly manner at the Cross." The only difference in the manner of offering. On the Cross, Jesus offered his blood, and actually died; on the altar the same Jesus offers the same blood and actually died; on the altar the same Jesus offers the same blood, and mystically dies; that is death is represented by the separate consecration of the bread and wine, which denotes the separation of his sacred blood from his body. The sacrifice of Calvary is the infinite ocean of redemption; the sacrifice of he Mass is the application of that of Calvary to the souls oif men. In the Mass we have a standing memorial of the death of Christ. The memory of his passion is daily renewed, and the merits of his blood are applied to our souls. The Victim slain is of infinite value—Jesus Christ himself. Infinite is the sancity of the High Priest Jesus Christ, who as St. Paul says (Heb. Vii.26). "is holy innocent, without spot, separated from sinners, and elevated above heavens;" and infinite glory is given to the adorable Trinity. The Mass is the very soul of Christian religion; the most sublime and august mystery of our holy faith; the most sacred function that can be performed on earth. "We must needs confess," says the Council of Trent, "that no other work can be performed by the faithful so holy and divine as the tremendous mystery, wherein the life-giving Victim, by which we were reconsiles to the Father, is daily immolated on the altar by priests."-- (Sess.xxii.) Would God that we were all penetrated by these sacred words when we attend the celebration of the divine mysteies !
The great "Sacrifice of the Mass" will only end with the end of time. At the Last Supper, when the Redeemer celebrated the first Mass, "gave his body and blood for the remission of sins," he ordained his deciples priest of the New Testament, and commanded them and their lawful successors to the end of time to offer the Holy Sacrifice. "Do this," says Christ, "in remembrance of me.-- (Luke, xxii, 19.) That is, as St. Paul explains it, to show forth his death till the second coming (Cor.xi.26.) St. Paul again proves in empharid words, that the priesthood of Christ shall never end "The Lord hath sworn, and will not repent, thou art a priest forever according to the order of Melchisedech ."--(Heb.vii..21.)
The prophet Malachi had foretold, long before St. Paul, that this sacrifice would last forever. He says in words the most beautiful: " I have no pleasure with you, saith the Lord of Hosts; and I will not receive a gift of your hands; for from the rising of the sun even to the going down, my name is great among the Gentiles, and in every place there is a sacrifice, and there is offered in my name a clean oblation: for name is great among the Gentiles, saith the Lord of Hosts."--(I.10.)
 

The Protesant Church, which has neither priest, nor victim, not altar, nor oblation, cannot pretend to fulfil the prophecy. She has left the fold of Christ, built upon the bark of Peter, whose fair face neither error. But in the Catholic Church, but upon the rock of Peter, whose fair face neither error, nor heresy, nor of old age hs ever sullied; the Catholic Church the virgin spouse of Christ, ever ancient and ever new; in her ever have been, and shall be, altar and sacrifice: in her, from the rising of the sun to the going down thereof, the Name of the Lord shall be great; and on countless altars, on behalf of millions and millions of souls, the clean oblation of the "Sacrifice of the Mass" shall be offered to the Lord of Hosts.

fonte:http://thetruemass.org/mnu2/XXII.php