How can we reason this way? Because we cannot abandon our fundamental Christian commitments (one of which is that the Bible is a revelation from God) and because we can presuppose that those who are reading this book are Christians who share that very same commitment. To abandon faith-commitments would be to dishonor God. We will, therefore, move on to the only questions that remain. What does this biblical revelation tell us about itself with reference to the matters of guidance and the sufficiency