Daniel Ibanez
Cardinal Müller, prefect emeritus of the Congregation for the Doctrine of the Faith, at a penance service in St. Peter's Basilica, March 29, 2019.

Cardinal Müller recalled that the Church of Rome has primacy not so much “because of the prerogatives of the Chair of Peter”, and certainly not as if its “occupant could do as he pleases,” but primarily “because of the pope’s grave duty, assigned to him by Christ, to guard the unity of the universal church in the revealed faith.”