In this essay Gaffin concentrates on the inherent vigour of Reformed systematic theology and how best to preserve and nurture its strengths. He first addresses the matter of Reformed systematic theology’s use of its own exegetical tradition given in the discipline of biblical theology as developed by Geerhardus Vos.

Many believers use the Psalms as a prayer book. It is also primarily God’s hymn book. From the early church the Psalter has been both the prayer and hymn book of the church. The author indicates this for the apostolic church and the church of the early church fathers. He continues with the Middle Ages and the Reformed tradition.