Inerrancy of Scripture
Whereas inspiration concerns the origin of the Bible’s authority, inerrancy describes its nature. By inerrancy we refer not only to the Bible’s being “without error” but also to its inability to err (we might helpfully illustrate this point by comparing it to the distinction between Jesus’ sinlessness or being without sin, on the one hand, and his impeccability or inability to sin on the other). Inerrancy, positively defined, refers to a central and crucial property of the Bible, namely, its utter truthfulness.
The basis for the doctrine of biblical inerrancy is located both in the nature of God and in the Bible’s teaching about itself. First, if God is perfect—all-knowing, all-wise, all-good—it follows that God speaks the truth. God does not tell lies; God is not ignorant. God’s Word is thus free from all error arising either from conscious deceit or unconscious ignorance. Such is the unanimous confession of the psalmist, the prophets, the Lord Jesus and the apostles. Second, the Bible presents itself as the Word of God written. Thus, in addition to its humanity (which is never denied), the Bible also enjoys the privileges and prerogatives of its status as God’s Word. God’s Word is thus wholly reliable, a trustworthy guide to reality, a light unto our path.
C S Lewis Institute