Petrus van Mastricht’s Theoretical-Practical Theology presents one of the most comprehensive methods of treating Christian doctrine. In it, Mastricht treats every theological topic according to a four-part approach: exegetical, dogmatic, elenctic, and practical. As a body of divinity, it combines a rigorous, scholastic treatment of doctrine with the pastoral aim of preparing people to live for God through Christ. Students and pastors will find it a valuable model for moving from the text of Scripture to doctrinal formulation that will edify the people of God. Volume 4, Redemption in Christ, examines God’s great work of obtaining redemption in the Mediator, Jesus Christ. Mastricht sets the stage with a discussion about the covenant of grace as God’s eternal purpose of restoration and restitution for the elect of fallen humanity. From that vantage point, he uses the remainder of the volume to address the glorious procurer of this covenantal grace. Mastricht walks us through the dignity, names, person, offices, states, and redemptive accomplishment of Jesus Christ. This volume helps us learn the significance of the One who secured so great a redemption for the people of God.