In his comparative study of Dietrich Bonhoeffer and Martin Luther King Jr., Deotis Robert presents striking parallels in the biographies and theological commitments of the two activist-theologians. Each gave his life in a resistance movement led by a dissenting church struggling against a racist regime. Each critiqued the Protestant liberalism of his seminary teachers because of his concern for transformative Christian witness. Each eventually found his gospel commitments propelling him into collaborations well beyond the conventional church. Both were martyred at age 39.