The book of Psalms expresses worship. Throughout its many pages, Psalms encourages its readers to praise God for who He is and what He has done. The Psalms illuminate the greatness of our God, affirm His faithfulness to us in times of trouble, and remind us of the absolute centrality of His Word. The portrayal of worship in the Psalms offers us glimpse after glimpse of hearts devoted to God, individuals repentant before Him, and lives changed through encounters with Him.