Apostolic Letter issues Moto Proprio of the Supreme Pontiff Francis: Magnum Principium
CNS photo/Paul Haring
By which Can. 838 of the Code of Canon Law is modified
The great principle, established by the Second Vatican Ecumenical Council, according to which liturgical prayer be accommodated to the comprehension of the people so that it might be understood, required the weighty task of introducing the vernacular language into the liturgy and of preparing and approving the versions of the liturgical books, a charge that was entrusted to the Bishops.
The Latin Church was aware of the attendant sacrifice involved in the partial loss of liturgical Latin, which had been in use throughout the world over the course