IN the preface to his commentary on the psalms, Cardinal Bellarmine says that the psalter is a compendium of the Old Testament. In fact, all that Moses has written concerning the Hebrew people and the law, all that the prophets have announced after him, we find in the chants of David, as St. Augustine observes: “The book of psalms contains all that the other canonical books contain as useful to souls; it is like an immense
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