The inerrancy of Scripture means that because God is its author, Scripture is wholly true in everything it affirms. Properly understood according to its intended meaning and literary form, the Bible does not teach what is false or affirm as fact what is contrary to truth.
The Westminster Confession does not use the later theological term inerrancy, but the substance of the doctrine is plainly present. Scripture comes from God, “who is truth itself” (WCF 1.4), and possesses “infallible truth and divine authority” (WCF 1.5). The original Scriptures were “immediately inspired by God” (WCF 1.8).
The reasoning is straightforward. God cannot lie (Titus 1:2). Scripture is breathed out by God (2 Timothy 3:16). Therefore the Word God has breathed out is true.
Jesus prayed to His Father:
“Sanctify them through thy truth: thy word is truth.” — John 17:17
He did not describe Scripture as generally reliable, religiously useful, or true only in matters directly concerning salvation. He received the written Word as truth.
Inerrancy and Infallibility
The terms inerrancy and infallibility are closely related. Inerrancy emphasizes that Scripture contains no error in what it teaches. Infallibility emphasizes that Scripture, because it comes from the truthful God, cannot fail or deceive.
The Westminster divines used the language of “infallible truth.” Modern Christians often use inerrancy to defend the same conviction against the claim that the Bible may contain genuine mistakes while remaining spiritually authoritative.
That distinction is important. A Bible that can assert falsehood as truth cannot finally function as an infallible rule. Once we concede that Scripture may be mistaken, we require some authority outside Scripture to tell us where it is correct and where it has failed. Human judgment then quietly becomes judge over the Word of God.
The Christian receives Scripture differently. We certainly interpret it, study its historical circumstances, examine difficult passages, and compare one text with another. But throughout that work we approach Scripture as pupils rather than judges.
Jesus’ Confidence in Scripture
Our doctrine of Scripture should agree with Christ’s doctrine of Scripture.
Jesus repeatedly treated the Old Testament as historically trustworthy and divinely authoritative. He referred to Adam and Eve, Noah, Abraham, Sodom, Moses, David, Elijah, Jonah, and Daniel without embarrassment or qualification. When tempted by Satan, He answered, “It is written” (Matthew 4:4, 7, 10). When confronting theological error, He could ask, “Have ye not read?” (Matthew 19:4), treating the words of Scripture as decisive.
His statement in John 10:35 is especially striking: “the scripture cannot be broken.”
The Son of God did not treat Scripture as a mixture of divine truth and human mistake. Neither should His church.
This does not mean every interpretation offered in the name of biblical fidelity is correct. Men can misunderstand an inerrant Bible. Indeed, Jesus rebuked people who possessed the Scriptures but interpreted them badly. The error, however, belonged to the reader rather than to the Word.
What Inerrancy Does—and Does Not—Require
A careful doctrine of inerrancy listens to Scripture according to the kind of literature God has given.
Poetry uses imagery. Proverbs commonly state general patterns of life rather than promises admitting no exceptions. Narrative may report an event without approving everything done within it. Numbers may be rounded. Events may be arranged topically rather than in strict chronological sequence. One Gospel writer may summarize words that another records more fully.
None of these things constitutes error.
If Psalm 98 tells the floods to clap their hands, inerrancy does not require us to believe rivers possess literal hands. When Scripture speaks of the sun rising, it uses ordinary observational language in the same way that we still speak of sunrise. When two writers describe the same event with different details, difference is not automatically contradiction. A contradiction exists only when two assertions cannot both be true in the same sense and at the same time.
We must therefore understand what a biblical writer actually intends to affirm before claiming that the affirmation is either true or false.
Inerrancy requires precision from the critic as well as confidence from the believer.
What About Apparent Contradictions?
There are difficult passages in Scripture. Christians need not pretend otherwise. Some difficulties can be resolved by closer attention to grammar, historical background, chronology, or literary purpose. Others admit several plausible solutions. Occasionally the available evidence does not allow us to determine exactly how two passages are to be harmonized.
A doctrine of inerrancy does not require us to invent an explanation merely to make a difficulty disappear. It permits us to say, “I do not presently know.”
The limitation of our knowledge is not evidence of error in God’s Word.
This attitude is consistent with WCF 1.9, which teaches that “the infallible rule of interpretation of Scripture is the Scripture itself.” Difficult passages should therefore be read in light of clearer passages, with careful attention to the whole counsel of God.
What About Manuscript Differences?
Another question concerns differences among surviving biblical manuscripts. These are matters of textual transmission, not inspiration itself.
The Westminster Confession distinguishes the Scriptures as originally inspired from their subsequent preservation. God immediately inspired the original text and has, by His singular care and providence, kept His Word pure in all ages (WCF 1.8).
Hand-copied manuscripts contain differences because copyists were not themselves inspired. Those differences deserve careful examination rather than denial. Yet their existence does not mean that the original text contained error, nor does it leave the church without the Word of God.
God gave His Word in history and has preserved it in history. Christians therefore need neither an unrealistic doctrine of inspired copyists nor a skeptical conclusion that the biblical text has disappeared.
Does Inerrancy Matter for the Gospel?
Our salvation does not depend upon answering every textual difficulty. It depends upon Jesus Christ. Yet our knowledge of Christ and His saving work comes to us through the prophetic and apostolic Word.
The Scriptures tell us who Christ is, why He came, what He accomplished at Calvary, that He rose bodily from the dead, and that salvation is found in Him. Paul could summarize the gospel by saying that Christ died for our sins and rose again “according to the scriptures” (1 Corinthians 15:3–4).
This is why confidence in biblical truthfulness matters. Christianity rests upon acts of God in real history. Christ truly became man, truly died, truly rose, and truly reigns. The gospel is more than an inspiring religious idea; it announces what God has actually done.
And because the God who accomplished redemption is also the God who gave Scripture, we need not approach His Word suspiciously.
There will always be passages requiring study. There will be questions to which we do not yet possess complete answers. Faith does not demand intellectual carelessness. It calls us to begin where Christ began: “Thy word is truth.”
Westminster references: WCF 1.2, 1.4–5, 1.8–9; WLC 3–4.