Here is an excerpt:
Peter Enns begins his new blog series with his own story about what caused his view of the Bible to change. One of the “culminating ‘aha’ moments” came from his study of 1 Cor 10:4: “for they drank from the spiritual rock that accompanied them, and that rock was Christ.”
Paul is clearly referring back to the times when God refreshed the Israelites with water from a rock during their desert wanderings Exodus 17, Numbers 20. However, Enns argues that Paul is doing more than just referring to the Old Testament accounts. Paul describes the rock as something which “accompanied them”—a clear reference, according to Enns, to ancient Jewish tradition that the rock in the desert actually travelled along with the Israelites.
Since the Jewish tradition about a travelling rock is clearly a legend—a legend that Paul apparently took to be fact—then we have a real problem, says Enns, for the evangelical view of biblical authority. He puts it bluntly, “no rock moved in the Old Testament, but Paul said one did.”