This article examines the connections between the Holy Spirit and the book of Psalms in terms of the Holy Spirit with, behind, and in the Psalms. The Spirit with the Psalms explores the Spirit's work as the Psalms are utilized in worship and prayer. The Holy Spirit behind the Psalms considers the role of the Spirit in the composition of the Psalms. The Holy Spirit in the Psalms speaks to the way the Psalms themselves talk about the Holy Spirit. The article concludes with a concise description of the Spirit's work in the Old Testament. This article examines the connections between the Holy Spirit and the book of Psalms in terms of the Holy Spirit with, behind, and in the Psalms. The Spirit with the Psalms explores the Spirit's work as the Psalms are utilized in worship and prayer. The Holy Spirit behind the Psalms considers the role of the Spirit in the composition of the Psalms. The Holy Spirit in the Psalms speaks to the way the Psalms themselves talk about the Holy Spirit. The article concludes with a concise description of the Spirit's work in the Old Testament.