Romans: Entrance to Treasures of Scripture

In regard to the Argument, that is, the contents of the Epistle to the Romans, Calvin wrote, “It will hence appear beyond all controversy, that besides other excellencies, and those remarkable, this can with truth be said of it, and it is what can never be sufficiently appreciated—that when any one gains a knowledge of this Epistle, he has an entrance opened to him to all the most hidden treasures of Scripture.”