A Relational Model of Interdisciplinary Methodology in Practical Theology: Focusing on the Doctrine of Sin

This study aims to propose a relational model of interdisciplinary methodology in practical theology, centered on the doctrine of sin. In order to achieve this aim chapter one initially explores Wolfhart Pannenberg’s fundamental theological approach to sin that is characterized by sin as a pregiven existential structure of human beings. Chapter two then deals with the critical conversation between Pannenberg’s understanding of sin and the Kierkegaardian approach to sin that is featured by the notion of “relationality.” Chapter three poses a model of relational interdisciplinary methodology of practical theology based on the Kierkegaardian relationality in conjunction with Karl Barth’s Chalcedonian-asymmetrical order that originated from his interpretation of Jesus’ divine and human natures. In this relational model, we can find such interdisciplinary principles as “indissoluble differentiation,” “the inseparable unity,” and “indestructible order” in making conversation between practical theology and non theological disciplines. Finally, chapter four shows how this interdisciplinary method can be employed in Christian education, focusing on catechetical instruction for adults in the local congregation.