The book of Psalms is sometimes referred to as the songbook of Israel, and both Jews and Christians have consistently witnessed to the power of the Psalms to give voice to their prayers and their expressions of worship. The Psalms have this power because, they are Israel's words directed to God in worshipful and prayerful response to his presence and actions among them. The Psalms provide examples of prayer and worship, and they have much to say about...