Pontifical Biblical Commission introduced by this Preface declares: “Without the Old Testament, the New Testament would be an unintelligible book, a plant deprived of its roots and destined to dry up and wither” (no. 84). From this perspective, one can appreciate the enormous task the Pontifical Biblical Commission set for itself in deciding to tackle the theme of the relationship between the Old and New Testaments. If the impasse presented by Harnack is to be overcome, the very concept of an interpretation