I'd like to have someone who thinks they can defend a sharp "differentiation" between the so-called "institutional" church and the church answer these (and I have about 10 others) questions. 

I mean I want someone to really get into the weeds on differentiation, with some rigor, no arm waving. 

Did the "institutional" church or the "People of God" give us a "closed" canon of Scripture, deciding which books belonged in the canon?

Did the "institutional" church or the "People of God" give us the form of the Sacraments?

And when did this occur?

The words for the "Institution" in the Mass come from the early 300s. 

Were those words given to us by "institutional" church or the "People of God" ?

Infant baptism....did this come from the "institutional" church or the "People of God"? 

They can't be separated.