" Barth was the first theologian to begin the criticism of religion...but he set in its place the positivist doctrine of revelation which says in effect, 'Take it or leave it': Virgin Birth, Trinity or anything else, everything which is an equally significant and necessary part of the whole, which latter has to be swallowed as a whole or not at all. That is not in accordance with the Bible. There are degrees of perception and degrees of significance, i.e. a secret discipline must be re-established whereby the mysteries of the Christian faith are preserved from profanation. "

― Dietrich Bonhoeffer , Letters and Papers from Prison