People look into mirrors to see how they look; they look into the Psalms to find out who they are. With a mirror we detect a new wrinkle here, an old wart there. We use a mirror when shaving or applying makeup to improve, if we can, the face we present to the world. With the Psalms we bring into awareness an ancient sorrow, we release a latent joy. We use the Psalms to present ourselves before God as honestly and thoroughly as we are able. A mirror shows us the shape of our nose and the curve of our chin, things we otherwise know only through the reports of others. The Psalms show us the shape of our souls and the curve of our sin, realities deep within us, hidden and obscured, for which we need focus and names.

The Psalms are poetry and the Psalms are prayer. These two features, the poetry and the prayer, need to be kept in mind always. If either is forgotten the Psalms will not only be misunderstood but misused.

Poetry is language used with intensity. It is not, as so many suppose, decorative speech. Poets tell us what our eyes, blurred with too much gawking, and our ears, dulled with too much chatter, miss around and within us. Poets use words to drag us into the depths of reality itself, not by reporting on how life is but by pushing/pulling us into the middle of it. Poetry gets at the heart of existence. Far from being cosmetic language, it is intestinal. It is root language. Poetry doesn't so much tell us something we never knew as bring into recognition what was latent or forgotten or overlooked. The Psalms are almost entirely this kind of language. Knowing this, we will not be looking primarily for ideas about God in the Psalms or for direction in moral conduct. We will expect, rather, to find exposed and sharpened what it means to be human beings before God.

Prayer is language used in relation to God. It gives utterance to what we sense or want or respond to before God. God speaks to us; our answers are our prayers. The answers are not always articulate. Silence, sighs, groaning—these also constitute responses. But God is always involved, whether in darkness or light, whether in faith or despair. This is hard to get used to. Our habit is to talk about God, not to him. We love discussing God. But the Psalms resist such discussions. They are provided not to teach us about God but to train us in responding to him. We don't learn the Psalms until we are praying them.

Those two features, the poetry and the prayer, account for both the excitement and the difficulty in studying the Psalms. The poetry requires that we deal with our actual humanity—these words dive beneath the surfaces of pose and pretense straight into the depths. We are more comfortable with prose, the laid- back language of our ordinary discourse. The prayer requires that we deal with God—this God who is determined on nothing less than the total renovation of our lives. We would rather have a religious bull session.

One editorial feature of the Psalms helps to keep these distinctive qualities of the Psalms before us. The Psalms are arranged into five books. At the end of Psalms 41, 72, 89, 106 and 150 formula sentences indicate a conclusion. Because of these miniconclusions the Psalms are usually printed (in English translations) as Book I (Psalms 1—41), Book II (42—72), Book III (73—89), Book IV (90—106) and Book V (107—150).

This five-book arrangement matches the five-book beginning of the Bible, deeply embedded in our minds as the five books of Moses. The five books of Moses are matched by the five books of David like two five-fingered hands clasping one another in greeting. In the five books of Moses God addresses us by his word, calling us into being and shaping our salvation. In the five books of David we personally respond to this word that addresses us. Prayer is answering speech. Every word that God speaks to us must be answered by us. God's Word has not done its complete work until it evokes an answer from us. All our answers are prayers. The Psalms train us in this answering speech, this language that responds to all God's creating and saving words targeted to our lives.

It is important to notice this well, for it shifts our interpretive stance. Our usual approach to God's Word is to ask, What is God saying to me? That is almost always the correct question when reading Scripture. But in the Psalms the question is, How do I answer the God who speaks to me? In the Psalms we do not primarily learn what God says to us, but how to honestly, devoutly and faithfully answer his words to us. In the course of acquiring language we learn how to answer our parents, our teachers, our employers and our friends, but we do not get very much practice in answering God. The Psalms train us in answering God. And so we bring a somewhat different mindset to the Psalms than we do to the rest of Scripture—we are learning to pray, not study, although the two activities will always be interconnected.

We know almost nothing of the circumstances in which the 150 psalms were written. David is the most named author, but most are anonymous. But that hardly matters, for the settings of the Psalms are not geographical or cultural but interior. Calvin called them "an anatomy of all the parts of the soul." Everything that anyone can feel or experience in relation to God is in these prayers. You will find them the best place in Scripture to explore all the parts of your life and then to say who you are and what is in you—guilt, anger, salvation, praise—to the God who loves, judges and saves you in Jesus Christ.