So what is it you don't accept?
Again, please understand that I'm not an expert on Barth. I'm judging more people who seem to be influenced by him. But what I see in them, and I think it's in Barth as well, is an unwillingness to use the results of critical study.
I agree with his statement that we need to give the Word authority, and that the Holy Spirit speaks through it. This is, of course, a Reformation concept of Scripture. However people look at Scripture from different starting points, and I'm willing to be more explicit in doing that based on critical study than I think he is.
For example, traditional Reformation theology tends to let Paul set terms for issues involving salvation, and for Christology picks a few highly explicit passages to set the agenda. I prefer to start with Jesus' own teachings, and thus start most things in the Synoptics.
Thus means that rather than justification by faith, my core concept of how salvation works starts with Jesus' teachings on what it means to be a follower. I think there are some pretty good correspondences between the two, so that for example Jesus' teaching about God not giving up on any of his children corresponds to the standard Protestant concept of justification as a stable foundation based on God's election. But still, starting from Jesus' teachings gives a different flavor to theology.
I'm willing to accept that the 4th and 5th Cent theologians were trying to defend important considerations against compromises that would have damaged the Church. But I'm more skeptical of the usefulness of person and nature in defining God and the incarnation. While Barth tries to clarify these concepts, I prefer approaches like Wright's that reconceptualize things using NT categories.
Critical scholarship is willing to say that there are differing voices in Scripture, which sometimes don't agree. I'm more inclined to make an explicit choice in priority. Barth's approach to Scripture doesn't make those kinds of choices.
I can't go much further without violating CF rules.
In general my theology is based on current moderate Jesus scholarship, and tends to be built on Jesus' message as understood through that. Barth's is much more conventionally Protestant. And his doctrine of Scripture means that he doesn't make very full use of the results of critical scholarship.
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