Chapter B10, “The Properties of Holy Scripture”
In this chapter Pieper sets out to explain four properties of Scripture, namely authority, efficacy, perfection, and perspicuity.
By authority we confess the Scripture deserves the same trust doe to God. It is only through the Scripture that we know God. We can receive faith in that authority of Scripture both because God creates it (Romans 10:17) and through our human reasoning. We can identify those who have saving faith primarily by their independent confession of God’s Word and the work of Christ.
By efficacy we mean that God’s Word actually accomplishes what it sets out to do - conviction of sin, creation of faith, and assurance of eternal life. It does this because of its nature as a divinely inspired book.
By perfection we mean sufficiency. The Bible tells us all we need for life and godliness. It does not reveal all natural or spiritual things, but it does tell us all we need for eternal life.
By perspicuity we mean the Bible can be understood clearly. The language is straightforward. All Christians can read and understand the Scripture. It is obscure only to those who do not know the language, who do not read it diligently, to those who are hostile or have unbelieving presuppositions.
Pieper illustrates many ways these four properties of Scripture can be understood or misunderstood. This chapter is particularly full of biblical references.