This is a “prophetic” word from Calvin out of the Institutes related to the postmodern sensibilities of Western Christianity. I’m not implying Calvin was speaking directly against postmodernism itself as a formal philosophy, as it had not yet been articulated, but this certainly does speak against its core tenets asserted today, to be sure. And I would say that ultimately, postmodernism, within the setting of Christianity, leaves a person without certainty that they will be accepted before God, which is exactly what Calvin explains in this section. The reason for this is because if you have no certainty and a house built on solid rock, ultimately, you will try and pick up the slack of uncertainty through your own deeds, works and effort in order to please God, which oddly enough, is what we see happening with many (though not all) postmoderns in the focus of various ministry focal points (i.e. deeds versus creeds).