Coming Fall 2026

God's self-humbling toward us in Jesus Christ is widely recognized to be the crux of Karl Barth's theology. Rarely are the implications of that move traced all the way to the Christian life. Cambria Kaltwasser explores those implications through the motif of friendship with God. For Barth, God enters a relationship of reciprocity with human beings in prayer, a relationship Barth names friendship. Tracing this theme across the Church Dogmatics, Kaltwasser shows how Barth's appeals to friendship paint a distinctive picture of the Christian life as mutual love and shared agency. However, this is threatened by Barth's abstract account of sanctification, which resembles less a friendship than a relationship of paternalism. To embrace Barth's portrait of the humble Lord and the friendship it enables, Kaltwasser argues, we must discard the paternalism and retain the friendship.

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 "Not shying away from naming and critiquing Barth's tendency to paternalism, Cambria Kaltwasser nevertheless steadily and compellingly draws out from his oeuvre the equally present vision of friendship with God. Her careful reading, nuanced interpretation, and subtle construction have much to offer those of us who care about God, human agency, and the Christian life."
—HANNA REICHEL, Charles Hodge Professor of Systematic Theology, Princeton Theological Seminary

"In this wonderful volume, Kaltwasser explores and illuminates the underattended theme of friendship with God, identifying it as the telos of a red thread of grace that arcs from the eternal event of divine election to the lived wonder of Christian life. Drawing carefully—yet critically—on the writings of Karl Barth, she frames our relationship with God as one of mutual love and shared agency, and identifies prayer lying at its beating heart. The resultant account of friendship with God is not only biblically resonant and theologically generative but also attends with deep pastoral awareness to the challenges and complexities of Christian faith in the contemporary world. With this impressive work, Kaltwasser establishes herself firmly not only at the forefront of a new, irenic, and constructive era in Barth studies, but also as a systematic theologian of the first order."
—PAUL T. NIMMO, King's Chair of Systematic Theology, University of Aberdeen

"Karl Barth on Friendship with God is a carefully argued and deftly critical study of a topic that has suffered undue neglect. This wise, rich, and creative book compels on multiple levels—as an incisive reading of the Church Dogmatics, as an astute critique of Barth's 'paternalistic' tendencies, and as a subtle intervention into the allied fields of systematics and theological ethics—and makes a signal contribution to contemporary discussions of Christian life."
—PAUL DAFYDD JONES, Professor of Religious Studies, University of Virginia

"Cambria Kaltwasser's Karl Barth on Friendship with God makes a compelling case that Barth's doctrine of sanctification should be read not as an academic puzzle about divine and human agency but as a coherent vision of the Christian life with urgent theological stakes. By tracing the logic of friendship through the doctrines of God, election, and sanctification, she exposes a tension between Barth's gospel-law thesis and his skepticism toward visible marks of the Christian life, arguing convincingly that Barth's own account of prayer in The Christian Life provides the resolution. Scholars of Barth, theological ethics, and the theology of the Christian life will find this a careful, constructive, and rewarding study."
—KEITH L. JOHNSON, Professor of Theology, Wheaton College

"Barth's remarks on friendship with God in the Church Dogmatics are passing, scattered, and largely undertheorized. He gives little attention to this motif or makes much of it, and yet there it has been, all these years, waiting for the right reader to show us what it amounts to, how it comports with other remarks and motifs, and why it matters. In her brilliantly conceived, thoughtfully argued, and gracefully written book, Cambria Kaltwasser does precisely this. She shows us how, for Barth, the intimacy, mutuality, and shared responsiveness that distinguish friendships are present in the prayers that God solicits and receives. If prayer is the heart of the Christian life, then so too is friendship with God. If Barth depicts God as our constant and faithful friend, then we will likely need novel and daring readings of his doctrines of God and election, his account of providence, and his vexing remarks on human agency. Kaltwasser does this as well. This is a superlative contribution to our understanding of Barth's theology, a splendid achievement."
—JOHN R. BOWLIN, Robert L. Stuart Professor of Philosophy and Christian Ethics, Princeton Theological Seminary