In this study Tom Kleffmann unfolds the fundamental conceptual framework of the Christian
faith as a theology of communication. He establishes the relevance of speaking about God and
discusses the question of what a revelation of God can mean. He also defines the meaning of
faith the rationality of faith and the task of theology. He begins his material exposition
with the Christian conception of untrue life and finds its center in the idea of God's
revelation as human which establishes the community of God. This is followed by the Christian
understanding of the world as an expression of God which must also reflect on the relationship
between belief in creation and natural science as well as the idea of true life and its
eternity emanating from the spirit of that community. In the concluding section the author
attempts to answer the question "who is God" and summarizes it in the idea of the triune life
of God.
