John Boys’ An Exposition of the Last Psalme is a detailed theological and literary analysis of Psalm 150, the final psalm in the Book of Psalms, which is a hymn of praise to God. Written in the early 17th century, Boys, an English clergyman and scholar, offers a rich, expository sermon on this psalm, which calls for the worship of God through music and instruments, focusing on the universality and intensity of praise due to God.Psalm 150 is a brief yet powerful passage that urges everything that has breath to praise the Lord, using various instruments like trumpets, lyres, and cymbals. Boys methodically breaks down each verse, emphasizing the importance of music in worship, the reasons for praising God, and the nature of praise that is meant to be exuberant and heartfelt. He explores the significance of the psalm's call to praise in the context of Christian devotion, urging believers to see the psalm not just as a historical religious text but as a guide for contemporary worship.