Pope Francis publishes a motu proprio on Friday to redefine the use of the pre-Vatican missal granting the decision to allow its use the local bishops. Groups attending the pre-Vatican liturgy must not deny the validity of the liturgical reform dictated by the Second Vatican Council and the magisterium of the Supreme Pontiffs, reports Vatican News.

In the Letter of the Holy Father Francis to the Bishops of the whole world, that accompanies the apostolic letter Motu Proprio data “Traditionis Custodes“, the Pope says, “A final reason for my decision is this: ever more plain in the words and attitudes of many is the close connection between the choice of celebrations according to the liturgical books prior to Vatican Council II and the rejection of the Church and her institutions in the name of what is called the “true Church.”

The Pope asked the bishops to exercise vigilance in another area though, “I ask you to be vigilant in ensuring that every liturgy be celebrated with decorum and fidelity to the liturgical books promulgated after Vatican Council II, without the eccentricities that can easily degenerate into abuses. Seminarians and new priests should be formed in the faithful observance of the prescriptions of the Missal and liturgical books, in which is reflected the liturgical reform willed by Vatican Council II.”

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Motu proprio Traditionis custodes