“Both matter and form, summarized in the Code of Canon Law, are established in the liturgical books promulgated by the competent authority, which must therefore be faithfully observed, without ‘adding, removing or changing anything,’” it says.

The document adds that arbitrary changes to either matter or form “jeopardize the effective bestowal of sacramental grace, to the obvious detriment of the faithful” and that the “severity and invalidating force” of such changes. “must be ascertained on a case-by-case basis.”

“Gestis Verbisque” frequently refers to the dicastery’s 2020 doctrinal note on the modification of the sacramental formula of baptism, which clarified that changing the words to the baptismal formula to “we baptize you” invalidated the baptism, requiring anyone who had been baptized with this formula to be considered as not yet having received the sacrament.

Fernández writes that in 2022 cardinals and bishops taking part in the DDF’s January plenary assembly had already expressed concern about “the multiplication of situations in which they were forced to note the invalidity of the Sacraments celebrated.”

Specific examples, listed by the cardinal, include using “I baptize you in the name of the Creator …” or “In the name of your father and mother … we baptize you,” instead of the established baptismal formula.

“While in other areas of the Church's pastoral action there is ample room for creativity, such inventiveness in the context of the celebration of the Sacraments turns rather into a ‘manipulative will’ and therefore cannot be invoked,” the cardinal prefect said.

“We ministers are therefore required to have the strength to overcome the temptation to feel like owners of the Church,” Fernández added.

The cardinal later commented that when the priest acts “in persona Christi capitis,” it does not mean that the priest is “the boss” with the ability to exercise arbitrary power, but that Christ alone is “‘the head of the body, the Church,’” citing Colossians 1:18.

“It seems increasingly urgent to mature an art of celebrating that, keeping at a distance as much from rigid rubricism as from unbridled imagination, leads to a discipline to be respected, precisely in order to be authentic disciples,” Fernández said.

Pope Francis approved the text of the DDF note during a private audience with Fernández on Jan. 31 after the note was discussed and unanimously approved by the cardinals and bishops who attended the dicastery’s recent January plenary assembly.