Whether it is lawful to add anything to the words in which the sacramental form consists?

Objections

Objection 1 : It seems that it is not lawful to add anything to the words in which the sacramental form consists. For these sacramental words are not of less importance than are the words of Holy Scripture. But it is not lawful to add anything to, or to take anything from, the words of Holy Scripture: for it is written (Dt. 4:2): "You shall not add to the word that I speak to you, neither shall you take away from it"; and (Apoc. 22:18,19): "I testify to everyone that heareth the words of the prophecy of this book: if any man shall add to these things, God shall add to him the plagues written in this book. And if any man shall take away . . . God shall take away his part out of the book of life." Therefore it seems that neither is it lawful to add anything to, or to take anything from, the sacramental forms.
Objection 2 : Further, in the sacraments words are by way of form, as stated above (Article [6], ad 2; Article [7]). But any addition or subtraction in forms changes the species, as also in numbers (Metaph. viii). Therefore it seems that if anything be added to or subtracted from a sacramental form, it will not be the same sacrament.
Objection 3 : Further, just as the sacramental form demands a certain number of words, so does it require that these words should be pronounced in a certain order and without interruption. If therefore, the sacrament is not rendered invalid by addition or subtraction of words, in like manner it seems that neither is it, if the words be pronounced in a different order or with interruptions.