A doxology is a hymn of praise ascribing glory to God. Scripture includes many doxological expressions, and several traditional doxologies have developed through use in the historic liturgies of the church. In Christian usage, doxologies are often ascriptions of praise to the Trinity; they constitute an important element in the acts of entrance.
The Psalms are organized into five books. The general organization of the book of Psalms reflects the growth of the collection in several stages. The superscriptions of many psalms contain information relevant to their collection, as well as their performance.
Although they bear the stamp of gifted poets such as David, the Psalms are conventional worship texts, adapted to the needs of the community as a whole. The prophetic voice that often speaks in the Psalms reflects their development through the work of the Levitical musicians of the sanctuary.