The Mass is, I insist, an action of God, of the Trinity. It is not a merely human event. The priest who celebrates fulfils the desire of our Lord, lending his body and his voice to the divine action. He acts, not in his own name, but in persona et in nomine Christi: in the Person of Christ and in his name.
Because of the Blessed Trinity’s love for man, the presence of Christ in the Eucharist brings all graces to the Church and to mankind. This is the sacrifice announced by the prophet Malachy: “From the rising of the sun to its setting my name is great among the nations, and a fragrant sacrifice and a pure offering is made to me in all places” . It is the sacrifice of Christ, offered to the Father with the cooperation of the Holy Spirit — an offering of infinite value, which perpetuates the work of the redemption in us and surpasses the sacrifices of the old law. (Christ is passing by, 86)
 Mal 1:11