Omission of the Words “Mysterium Fidei” in the Consecration of the Chalice (Holy Office, Monitum, 24 July, 1958)
A Monitum of the Holy Office:
This Supreme Sacred Congregation has learned that in a certain translation of the New Order of Holy Week into the vernacular, the words “mysterium fidei” in the form of the consecration of the chalice are omitted. It is also reported that some priests omit these words in the very celebration of Mass.
Therefore this Supreme Congregation gives warning that it is impious (nefas) to introduce a change in so sacred a matter and to mutilate or alter editions of liturgical books (cf. can. 1399, 10).
Bishops therefore, in accordance with the warning of the Holy Office of Feb.,1958, should see to it that the prescriptions of the sacred canons on divine worship be strictly observed, and they should be closely watchful that no one dare to introduce even the slightest change in the matter and form of the sacraments.
Given at Rome from the Holy Office, 24th of July, 1958.
AAS 50-536; Holy Office Monitum, 24 July, 1958