The authority of Scripture means that because the Bible is the Word of God, what Scripture rightly teaches God Himself requires us to believe and obey.
Its authority does not arise from the church’s approval, the antiquity of the Bible, the brilliance of its writers, or our personal experience of its usefulness. Scripture possesses authority because of its author.
The Westminster Confession states:
“The authority of the Holy Scripture, for which it ought to be believed and obeyed, dependeth not upon the testimony of any man, or Church; but wholly upon God (who is truth itself), the author thereof: and therefore it is to be received, because it is the Word of God.” — WCF 1.4
That is the heart of the doctrine. The church does not make Scripture authoritative. The church recognizes and receives the authority God has already placed in His Word.
When Scripture Speaks, God Speaks
The prophets repeatedly introduced their message with words such as, “Thus saith the LORD.” Their authority did not lie in personal brilliance or ecclesiastical position. They spoke because God had spoken.
The New Testament treats the written Scriptures in the same way. Paul praised the Thessalonians because:
“when ye received the word of God which ye heard of us, ye received it not as the word of men, but as it is in truth, the word of God.” — 1 Thessalonians 2:13
Christ likewise appealed repeatedly to what “is written.” For Him, the written Word settled controversies, exposed error, resisted temptation, and revealed the will of His Father.
This is why Scripture’s authority differs from every merely human authority. Pastors have authority. Parents have authority. Civil rulers have authority. Church courts possess real authority within the sphere Christ has assigned them. Yet every human authority is derived, limited, and accountable to God.
Scripture stands over them all because Scripture is God’s Word.
The Church Receives Scripture; It Does Not Create It
A common question arises: if the church recognized the biblical canon, does that mean the church gave the Bible its authority?
No. Recognition is different from creation.
A court may recognize that a man is king, but the court’s recognition is not necessarily what made him king. In the same way, the historic church received the apostolic and prophetic writings as God’s Word because they possessed divine authority; ecclesiastical recognition did not confer that authority upon them.
The Westminster Confession allows an important place for the testimony of the church. We may be “moved and induced” by that testimony to hold Scripture in high esteem (WCF 1.5). The church preserves the Scriptures, teaches them, defends them, translates them, and confesses what they teach.
Yet our certainty cannot finally rest upon the church, because the church itself must be judged by Scripture.
The authority of the Bible “dependeth not upon the testimony of any man, or Church” (WCF 1.4).
This was one of the great convictions recovered with particular clarity during the Protestant Reformation. Councils may err. Theologians may err. Ministers may err. Traditions may preserve great wisdom and still remain human traditions. God’s Word alone possesses intrinsic, infallible authority.
How Do We Know Scripture Has Divine Authority?
If Scripture’s authority does not depend upon the church, must every Christian somehow prove the Bible independently?
The Westminster Confession gives a richer answer.
Scripture bears abundant evidence of its divine origin: “the heavenliness of the matter,” “the efficacy of the doctrine,” “the majesty of the style,” “the consent of all the parts,” its God-glorifying scope, and its revelation of the way of salvation (WCF 1.5). The Bible does not ask us to regard it as God’s Word in the absence of all evidence.
Yet something deeper is necessary for settled spiritual assurance:
“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.” — WCF 1.5
This is not a private revelation added to Scripture. The Holy Spirit enables us to recognize the divine character of the Word He inspired.
Jesus described His people as sheep who hear and know their Shepherd’s voice (John 10:27). The Spirit does not grant the Bible authority in our experience. He brings us to recognize and submit to the authority it already possesses.
Scripture Is the Final Authority
Christians sometimes speak of sola Scriptura—Scripture alone. Properly understood, this does not mean that Scripture is the only authority that exists.
Christ appoints teachers to His church. We should learn from faithful ministers, creeds, confessions, commentators, and the accumulated wisdom of Christians who have gone before us. Rejecting every secondary authority is neither biblical nor wise.
Sola Scriptura means that Scripture is the only infallible rule of faith and obedience. Every lesser authority must finally be tested by it.
Isaiah gives the principle:
“To the law and to the testimony: if they speak not according to this word, it is because there is no light in them.” — Isaiah 8:20
The Bereans were called noble because they “searched the scriptures daily, whether those things were so” even when the preacher was the apostle Paul (Acts 17:11).
No Christian leader should resent such examination. Faithful ministers want their hearers to believe them because they have faithfully explained Scripture, not because their office places them beyond testing.
Scripture Is the Supreme Judge in Religious Controversy
WCF 1.10 brings the doctrine to its logical conclusion:
“The supreme judge by which all controversies of religion are to be determined … can be no other but the Holy Spirit speaking in the Scripture.”
When Christians disagree, therefore, the final question cannot be merely what our tradition says, what a denomination has decided, what seems persuasive to our culture, or what feels right to us.
We must ask, What has God said?
This does not remove the need for careful interpretation. Appealing to biblical authority does not guarantee that our interpretation is correct. WCF 1.9 therefore teaches that Scripture interprets Scripture. Clearer passages illuminate more difficult ones, and individual texts must be understood within the whole counsel of God.
Submission to biblical authority consequently requires more than quoting verses. It requires careful reading, sound interpretation, humility, and willingness to have our own assumptions corrected.
The person most committed to Scripture’s authority should also be among the most willing to discover that he has misunderstood Scripture.
Authority Reaches Beyond What We Prefer
It is comparatively easy to affirm biblical authority when Scripture agrees with conclusions we already hold. Submission becomes visible when God’s Word challenges us.
The Bible addresses our worship, speech, sexuality, marriages, families, ambitions, money, anger, forgiveness, treatment of enemies, use of authority, and conduct toward the weak. At some point it will confront every culture and every human heart.
That confrontation is part of its mercy.
We do not need a Bible that simply repeats the instincts of our age. Such a Bible could never correct us. We need the voice of the God whose wisdom transcends every age and whose holiness exposes what we would rather excuse.
James therefore warns us against hearing without doing:
“But be ye doers of the word, and not hearers only, deceiving your own selves.” — James 1:22
To confess Scripture’s authority while deliberately refusing its commands is a contradiction in practice.
The Authority of Scripture Is the Authority of Christ
Christian submission to Scripture is finally personal because Scripture brings us before the lordship of Jesus Christ.
The risen Christ possesses “all power … in heaven and in earth” (Matthew 28:18). He commissioned His apostles to teach the nations “to observe all things whatsoever I have commanded you” (Matthew 28:20). Apostolic doctrine therefore does not compete with Christ’s authority; it comes with His authorization and through His Spirit.
The Scriptures reveal Christ, announce His gospel, communicate His commands, and testify to His promises. We cannot honor Christ while treating the Word He authenticated and commissioned as optional.
Yet His authority should not terrify the believer as though Christ were a harsh master. The One who commands us in Scripture is the same Savior who gave Himself for us. His commands are wise. His warnings are gracious. His promises are sure. His Word leads His people in the path of life.
The question of biblical authority therefore reaches beyond whether we possess a sufficiently conservative doctrine of Scripture. It asks whether we will place ourselves beneath the Word of God.
The church has no authority to revise it. The preacher has no authority to soften it. The Christian has no authority to select only the portions that agree with him.
God has spoken. Our calling is to hear Him with faith, interpret His Word carefully, and obey Him gladly.
Westminster references: WCF 1.2, 1.4–5, 1.8–10; WLC 3–5, 155–157; WSC 2–3.