Book One (Psalms 1–41) is attributed almost entirely to David; all but four of the psalms (1–2; 10; 33) are ascribed to him. In Hebrew Psalm 10 is a continuation of Psalm 9 because it was composed as an acrostic poem. Likewise, many Hebrew manuscripts combine Psalm 33 with 32. Only later are these divided into separate psalms. Psalm 1 sets the stage for the entire collection by explaining that the study of the Word of God is the foundation of a meaningful, prosperous life.