Systematic Theology: The Triune God

Robert W. Jenson's Systematic Theology: The Triune God presents a radical reconceptualization of Christian theology grounded in narrative temporality and ecclesial practice. This first volume of his systematic theology project argues that the God of Christian faith must be understood primarily through the biblical narrative of Israel and Jesus Christ, rather than through abstract metaphysical categories inherited from Greek philosophy. Jenson contends that traditional theology has been hampered by its adoption of timeless, static concepts of deity that fundamentally contradict the biblical witness to a God who acts in history.

Central to Jenson's argument is his rejection of the classical distinction between God's immanent and economic Trinity. He maintains that God's being is constituted by his temporal acts of salvation, making divine identity inseparable from the particular history narrated in Scripture. This move challenges both process theologians who subordinate God to temporal becoming and classical theists who protect divine transcendence by removing God from genuine temporal involvement. Jenson argues instead for a revisionary account where God's eternity encompasses rather than excludes time, enabling authentic divine participation in creaturely history without compromising divine sovereignty.

The work engages critically with major figures across theological traditions, particularly Karl Barth's doctrine of revelation and Thomas Aquinas's metaphysical framework. While appreciating Barth's christocentrism, Jenson faults him for insufficiently integrating pneumatology and ecclesiology into his theological system. Against Thomistic approaches, he argues that beginning with philosophical concepts of being inevitably distorts the biblical God who is known through promise and fulfillment. Jenson draws constructively from Eastern Orthodox theology, especially its emphasis on divine energies and liturgical theology, while maintaining a distinctly Lutheran concern for justification by faith.

Jenson's contribution lies in his attempt to reconstruct systematic theology from explicitly biblical and liturgical foundations rather than philosophical prerequisites. His narrative approach offers a middle path between liberal reductions of God to human religious experience and conservative retreats into propositional dogmatics. By locating God's reality within the concrete history of Israel, Jesus, and the church, Jenson provides resources for contemporary theology to speak meaningfully about divine action without retreating into either fundamentalism or religious relativism. His work represents a significant postliberal effort to restore robust theological discourse about God while acknowledging the legitimate insights of historical criticism and hermeneutical theory.