“Dialectical theology arose in reaction against rationalistic and liberal tendencies in Protestant theology. A guiding idea, derived from Kierkegaard, is that the difference between God and man is so great that the usual constraints on rational discourse (non-contradiction, etc.) can have only limited application: the very core of faith contains paradox, since the tension between finite human existence and infinite divine being cannot be rationally resolved.
“The first major statement representing this view was Karl Barth’s (1886-1968) commentary, The Epistle to the Romans, 1919. Emil Brunner (1889-1966) and Friedrich Gogarten (1887-1967) were among the leading representatives of this tendency, which also influenced Rudolf Bultmann (1884-1976).”
— Penguin Dictionary of Philosophy (Penguin Books, 2005), 159.