Theologian and Bible scholar Rudolf Bultmann grew up in a family shaped by the pietist revival in Germany. His father, a pastor, eventually became a liberal, but his mother remained attached to the pietist tradition. The two took their theological differences to their graves. The tombstone of Bultmann’s father reads: “I believe in God my father,” a line that reflects the theological liberalism of Adolf Harnack. His mother’s tombstone declares, “I know that my redeemer lives” (Konrad Hammann, Rudolf Bultmann: A Biography, Polebridge).