The Authority of Scripture

What does the Bible teach about itself?
(Expanded study notes based on Wayne Grudem’s Systematic Theology*, Chapter 4, and related Scripture)*

Definition
The authority of Scripture means that all the words in Scripture are God’s words in such a way that to disbelieve or disobey any word of Scripture is to disbelieve or disobey God.

A. All the words in Scripture are God’s words

This is not a claim that every sentence is a direct prophetic oracle spoken in the first person by God, nor that the human authors were mere secretaries. It is the claim that the final written product—the words we have in the canon—are God’s words as well as the human authors’ words (verbal, plenary inspiration).

1. This is what the Bible claims for itself

• The frequent prophetic formula “Thus says the Lord” (and equivalents) appears hundreds of times (e.g., Num. 22:38; Jer. 1:9; Ezek. 2:7; Deut. 18:18–20). God places His words in the prophet’s mouth.
• Not every part of Scripture is a direct prophetic decree. Narrative, poetry, wisdom, and letters are also included under the same authority.
• 2 Timothy 3:16 — “All Scripture is breathed out by God (theopneustos) and profitable…” The entire Old Testament (and, by extension as the canon closed, the New) is God-breathed.
• Matthew 4:4 — Jesus quotes Deuteronomy: man lives by every word that proceeds from the mouth of God.
• Matthew 19:4–5 — Jesus treats an unnamed statement in Genesis 2:24 as what “he who created them… said.” The authority does not depend on an explicit speaker being named in the original text.
• Acts 1:16 — The Holy Spirit spoke beforehand by the mouth of David (Psalm 69).
• The Greek word graphē (“writing/Scripture”) is used for Old Testament writings and, early on, for New Testament writings as well.
• 2 Peter 3:16 — Peter places Paul’s letters on the same level as “the other Scriptures.”
• 1 Corinthians 14:37 — Paul writes that what he is writing is “a command of the Lord.”
• 1 Timothy 5:18 — Paul quotes both Deuteronomy and Luke 10:7 as “Scripture.”

2. We are convinced of the Bible’s claims as we read it

• Ultimate conviction that these are God’s words is given by the Holy Spirit (1 Cor. 2:13–14). The natural person does not receive them; they are spiritually discerned.
• John 10:27 — “My sheep hear my voice.” The internal testimony of the Spirit enables believers to recognize the voice of their Shepherd in the words of Scripture.
• The Westminster Confession of Faith (1.5) states that while the church’s testimony, the heavenliness of the matter, the majesty of the style, the consent of all the parts, and other excellencies are arguments that evidence Scripture to be the Word of God, “our full persuasion and assurance of the infallible truth and divine authority thereof is from the inward work of the Holy Spirit bearing witness by and with the Word in our hearts.”

3. Other evidence can be useful but is not finally decisive

• Historical accuracy, fulfilled prophecy, the unity of the whole, and archaeological corroboration can strengthen faith and remove obstacles.
• Examples sometimes cited include the historical reliability of biblical accounts and the fulfillment of predictive prophecy. (Note: some specific claims, such as certain early interpretations of the Ebla tablets, were later shown to be overstated or unsubstantiated; the broader archaeological and historical record continues to support the general reliability of the biblical narrative without becoming the final ground of authority.)
• Such evidences are subordinate. If we make historical accuracy, science, or human reason the final court of appeal, we have placed something else above Scripture.

4. The words of Scripture are self-attesting

• Scripture cannot be proved to be God’s Word by appeal to any higher authority. If we appeal to science, logic, or historical research as the ultimate proof, then that higher authority becomes the real standard, and Scripture is no longer absolute.
• The charge of circularity is often raised: “You believe the Bible is God’s Word because it claims to be, and you believe the claim because it is God’s Word.”
  Grudem’s response: any argument for an absolute or highest authority must ultimately appeal to that authority itself; otherwise it would not be the highest. Everyone uses some form of circular appeal when defending their ultimate standard (whether reason, experience, or another religious text).
  The difference is that the Holy Spirit works to overcome the distorting effects of sin so that the self-attesting character of Scripture becomes persuasive to those who are being renewed in mind (Rom. 12:2). Sin distorts perception; the Spirit enables recognition of God’s voice.

5. This does not imply mechanical dictation as the sole means

• Affirming that all the words are God’s words describes the result, not a single method of production.
• God used many means: direct speech (Isa. 38:4–6), writing, dictation of content (Rev. 2:1), visions, dreams, research and careful composition (Luke 1:1–4), and ordinary human authorship under the superintendence of the Spirit.
• Hebrews 1:1 — “Long ago, at many times and in many ways, God spoke…” The diversity of modes is consistent with the final product being fully God’s words.

B. To disbelieve or disobey any Scripture is to disbelieve or disobey God

• Because the words are God’s words, rejecting them is rejecting Him.
• Luke 24:25 — Jesus rebukes the disciples for being slow to believe all that the prophets had spoken.
• 2 Peter 3:2 — Believers are urged to remember the predictions of the holy prophets and the commandment of the Lord through the apostles.
• In preaching and teaching, nothing carries higher authority than the faithful explanation of the text of Scripture itself. Illustrations and stories may help, but they remain subordinate to the words of the text.

C. The truthfulness of Scripture

1. God cannot lie

• Titus 1:2 — “God, who never lies…”
• Hebrews 6:18 — It is impossible for God to lie.
• Numbers 23:19 — “God is not man, that he should lie, or a son of man, that he should change his mind.”

2. Therefore all the words of Scripture are completely true and without error

• God’s words are pure (Ps. 12:6; Prov. 30:5).
• They stand forever (Ps. 119:89; Matt. 24:35).
• This is the basis for the doctrine of inerrancy: Scripture in the original manuscripts does not affirm anything contrary to fact.

3. God’s words are the ultimate standard of truth

• John 17:17 — Jesus prays, “Your word is truth.”
• Scripture does not merely contain truth or become truth; it is the standard by which other claims are measured.

4. Apparent conflicts with new facts or science

• If a claimed “fact” contradicts Scripture, either the fact is not correctly established or our interpretation of Scripture needs re-examination.
• Classic examples include ancient cosmological language (the sun “rising” or “going down”) which uses ordinary observational language rather than technical scientific description, and genealogies that may have intentional gaps or selective lines.
• The proper response is not to set science or archaeology as a higher authority, but to hold both the truthfulness of Scripture and the provisional nature of human knowledge in proper relation.

D. Written Scripture is our final authority

• 2 Timothy 3:16, 1 Corinthians 14:37, 2 Peter 3:16 establish the written text as the final standard.
• Commentators, councils, traditions, and modern scholarship—however learned or sincere—can be mistaken. Their value is measured by how faithfully they explain the text.
• Speculation about what a biblical author “must have believed” (for example, whether Moses held a flat-earth cosmology) remains secondary to what the text itself affirms. The authority rests in the words written, not in reconstructed mental backgrounds.

E. Notes on the claims of other religious scriptures

• Other writings (the Qur’an, the Book of Mormon, and various later claims) also assert divine origin or inspiration.
• Mere claim is insufficient. The Christian conviction rests on the self-attesting character of the canonical books, the internal witness of the Holy Spirit, the consistency of the whole with the person and work of Christ, and the historical continuity of the apostolic witness.
• The same criteria that confirm the authority of Scripture also exclude writings that lack these marks.