It seems (?) Isaiah the prophet had a different opinion:
Isaiah 1:21-22
"How is the faithful city, that was full of judgment, become a harlot? justice dwelt in it, but now murderers. Your silver has become dross, your choice wine is diluted with water."
I suppose someone would say this is non-applicable and that the church now can examine what is proper better than the prophet (let’s hope so, cause if not…).
For instance, in the documents of the
Council of Trent (15xx) under the ON THE SACRIFICE OF THE MASS heading Section IX we read: If any one says that the rite of the Roman Church, according to which a part of the canon and the words of consecration are pronounced in a low tone, is to be condemned; or, that the mass ought to be celebrated in the vulgar tongue only; or, that water ought not to be mixed with the wine that is to be offered in the chalice,** for that it is contrary to the institution of Christ;
let him be anathema.
To a student of theology/church and scriptures, one might be thrown a little bit for a loop here.
It seems the catch here is the “for that it is is contrary to the institution of Christ”. The language can be a little unclear to a modern ear: does this mean that it is wrong to say it is against Christ’s institution, or does it mean Christ instituted this with water, and so therefore it is wrong to say otherwise?
There’s one little extra paragraph that is linked to this that states that “it is believed” rather than known that this was done by Christ and shows some symbolism for remembrance sake and that the sacrifice of the mass then isn’t only Jesus’ body and blood but also the people symbolized by water:
On the water that is to be mixed with the wine to be offered in the chalice.
The holy Synod notices, in the next place, that it has been enjoined by the Church on priests, to mix water with the wine that is to be offered in the chalice; as well because it is believed that Christ the Lord did this, as also because from His side there came out blood and water; the memory of which mystery is renewed by this commixture; and, whereas in the apocalypse of blessed John, the peoples are called waters, the union of that faithful people with Christ their head is hereby represented.