And where exactly is it in the docs of the Second Vatican Council?
"No person, even if he be a priest, may add, remove or change anything in the Liturgy on his own authority." [ Second Vatican Council, Constitution on the Sacred Liturgy, Sacrosanctum Concilium, nos. 22, 3.]
And where exactly is it in the docs of the Second Vatican Council?
Right here: (Sacrosanctum Concilium)
30. To promote active participation, the people should be encouraged to take part by means of acclamations, responses, psalmody, antiphons, and songs, as well as by actions, gestures, and bodily attitudes.And here:
36. These norms being observed, it is for the competent territorial ecclesiastical authority mentioned in Art. 22, 2, to decide whether, and to what extent, the vernacular language is to be used;And here:
37. Even in the liturgy, the Church has no wish to impose a rigid uniformity in matters which do not implicate the faith or the good of the whole community; rather does she respect and foster the genius and talents of the various races and peoples. Anything in these peoples' way of life which is not indissolubly bound up with superstition and error she studies with sympathy and, if possible, preserves intact. Sometimes in fact she admits such things into the liturgy itself, so long as they harmonize with its true and authentic spirit.