“This leads to a haunting question. What else does the Bible not know about what it means to be human? If the Bible cannot be trusted to reveal the truth about us in every respect, how can we trust it to reveal our salvation? This points to the greater issue at stake here — the gospel. Vines’s argument does not merely relativize the Bible’s authority, it leaves us without any authoritative revelation of what sin is. And without an authoritative (and clearly understandable) revelation of human sin, we cannot know why we need a savior, or why Jesus Christ died.”