PARAGRAPHThis article will be permanently flagged as inappropriate and made unaccessible to everyone. Are you certain this article is inappropriate. Email Address:. Dietrich Bonhoeffer German: ; 4 February - 9 April was a German Lutheran pastor , theologian , anti- Nazi dissident, and key founding member of the Confessing Church. His writings on Christianity's role in the secular world have become widely influential, and his book The Cost of Discipleship became a modern classic.