The quotation cited in a previous post is interesting because

1. It addresses a objection that the Romanists launched against Protestantism: the diversity of opinion that results from the lack of an infallible interpreter.
2. Calvin doesn’t try to resolve the problem of subjectivity on hermeneutical grounds as the critics who followed did (i.e., follow this interpretive method, turn the crank, and out comes an objective interpretation). He, instead, located a great part of the problem in the moral realm.