“Early in his majestic Church Dogmatics, Barth experimented with a doctrine of inspiration that allowed for a strong affirmation of scriptural fallibilism with a high doctrine of scriptural authority. The Bible, he said there, (CD I.2, section 19) was not directly identical to the Word of God, but could become it in a secondary fashion, by the agency, act, and presence of the Holy Spirit. Barth’s Christocentrism there took on a Christomorphic tone, so that Holy Scripture consisted in an altogether human text and authorship, joined to an altogether Divine Reality and Spirit. Such indirect identity gave Barth’s early doctrine of Scripture remarkable dynamism and exegetical freedom. But in practice, Barth did not distinguish so sharply and confidently between the inspired Word and the biblical letter. His fine print excurses showed a reliance upon the biblical text as both authoritative and self-authenticating, a living witness to Almighty God.”
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Katherine Sonderegger,
Systematic Theology: The Doctrine of God