This thesis examines three students of Karl Barth’s work, all of whom articulate Christian theologies of Israel and Judaism under the influence of his thought and thus the wording of the title, after him. The three theologians are Paul M. van Buren (1924-1998), John Howard Yoder (1927-1997), and Robert Jenson (1930-2017). All three studied with or were supervised by Barth during the 1950s. Later, each of them would make significant contributions to post-Holocaust theologies of Israel and Judaism. In this thesis, I seek to elucidate the conceptual relationship between these two elements—each theologian’s early engagement with Barth and their later contributions to post-Holocaust theology—and argue that by examining the former, one can better understand the theological bases for the latter. I begin with an analysis of Barth’s doctrine of Israel. Barth claims that Israel and rabbinic Judaism are eternally determined to be witnesses to God’s own self-determination in Jesus Christ to be the God whose mercy rules in God’s judgment. A close comparative reading of van Buren, Yoder, and Jenson then follows. I begin by outlining the ways these three theologians appropriate and depart from Barth during or shortly after their time studying with him. I then trace the way each theologian’s early appropriation of and departure from Barth relates fundamentally to the development of their theologies of Israel and Judaism. My analysis reveals that each of the three critique Barth’s doctrine of God’s self-determination as the pre-determination of the identity of Israel and Judaism to be witnesses of Jesus Christ. This common critique enables each of the three to articulate a more positive account of Israel’s and rabbinic Judaism’s witness. / Dissertation / Doctor of Philosophy (PhD) / This thesis examines three students of Karl Barth’s work, all of whom articulate Christian theologies of Israel and Judaism under the influence of his thought and thus the wording of the title, after him. Paul M. van Buren, John Howard Yoder, and Robert Jenson studied with or were supervised by Barth in the 1950s. Each of them would later make significant contributions to post-Holocaust theologies of Israel and Judaism. In this thesis, I seek to elucidate the conceptual relationship between these two elements—each theologian’s early engagement with Barth and their later contributions to post-Holocaust theology. My analysis reveals that these three theologians all critique Barth’s doctrine of God’s self-determination as the pre-determination of the identity of Israel and Judaism to be witnesses of God’s judgment. This critique enables each of the three to articulate a more positive account of Israel’s and rabbinic Judaism’s witness.