I have no idea what you mean by this. Granted, the words of consecration were spoken by Christ well before they were written, and it's those words that manifested, well, let's say the "New Covenant", since it's less confusing to use the distinct terms for distinct realities.
And that Church predates the Roman Catholic Church.
I'm well aware you disagree, but "that Church" is in fact what you refer to as "the Roman Catholic Church."