"[T]he whole Church plays the role of priest and victim along with Christ, offering the Sacrifice of the Mass and itself completely offered in it. The Fathers of the Church taught this wondrous doctrine." Source: Pope Paul VI, SACROSANCTUM CONCILIUM, Constitution on the Sacred Liturgy, DECEMBER 4, 1963
"And by bidding the Apostles to do this in memory of Him, He made clear that He wanted it to be forever repeated. This intention of Christ was faithfully carried out by the primitive Church through her adherence to the teaching of the Apostles and through her gatherings to celebrate the Eucharistic Sacrifice. As St. [...]
"And so we must approach this mystery (the Eucharist) in particular with humility and reverence, not relying on human reasoning, which ought to hold its peace, but rather adhering firmly to divine Revelation." Source: Pope Paul VI, SACROSANCTUM CONCILIUM, Constitution on the Sacred Liturgy, DECEMBER 4, 1963
"To accomplish so great a work, Christ is always present in His Church, especially in her liturgical celebrations. He is present in the sacrifice of the Mass, not only in the person of His minister, 'the same now offering, through the ministry of priests, who formerly offered himself on the cross', but especially under the [...]
"First of all, We want to recall something that you know very well but that is absolutely necessary if the virus of every kind of rationalism is to be repelled; it is something that many illustrious martyrs have witnessed to with their blood, something that celebrated fathers and Doctors of the Church have constantly professed [...]
"On the very day of Pentecost, when the Church appeared before the world, 'those who received the word" of Peter "were baptized.' And 'they continued steadfastly in the teaching of the apostles and in the communion of the breaking of bread and in prayers . . . praising God and being in favor with all [...]
"And so We earnestly hope that the restoration of the sacred liturgy will produce abundant fruits in the form of Eucharistic devotion, so that the Holy Church may, with this salvific sign of piety raised on high, make daily progress toward the full achievement of unity, inviting all Christians to a unity of faith and [...]