In Beyond Foundationalism, Grenz and Franke offer a revolutionary methodology for doing theology in a postmodern age. Writing to both mainline and evangelical theologians, they propose a new theological method that uses three sources: the Spirit, speaking authoritatively through the biblical text; tradition, providing a historical interpretive framework; and culture, as context for constructive theological reflection. This method, they argue, fosters a Christian theology that acknowledges the whole of God (Father, Son, and Spirit); utilizes the faith community as the organizing principle or integrative motif; and is future-oriented.