““John Calvin, Comment on 2 Cor. 5:20 This is why Paul upholds the teaching of the gospel in such a forceful way ... Seeing such an example and such a picture of man’s great weakness and fickleness, Paul states that the truth of the gospel must supersede anything that we may devise … he is showing us that we ought to know the substance of the doctrine which is brought to us in the name of God, so that our faith can be fully grounded upon it. Then we will not be tossed about with every wind, nor will we wander about aimlessly, changing our opinions a hundred times a day; we will persist in this doctrine until the end. This, in brief, is what we must remember.””
