Barth argues that 18th-century rational theology was rooted in prior commitments to peaceable citizenship and morality. The dynamic goes something like this: Christianity is interpreted pragmatically - it’s about the transformation of human life; but it doesn’t work - human life isn’t transformed; there must therefore be something wrong with Christianity itself. All the scientific and philosophical discoveries of the 18th century are picked up as tools to critique a Christianity that doesn’t mean prior moralistic standards.
Generalizing, Barth adds “Psychologically speaking, abstract theories of Christianity, whether they are positive or critical, are always a compensation for an actual (albeit at times very hidden) deficiency in Christian practice.”
Peter Leithart
Peter J. Leithart is President of Theopolis Institute. He is the author of numerous books on theology, literature, and culture, including Theopolitan, Defending Constantine, and Baptized Body.
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