During the Protestant Reformation, the Reformers emphasised five convictions that summarised their understanding of the gospel. These became known as the five solas: sola Scriptura (Scripture alone), solus Christus (Christ alone), sola fide (faith alone), sola gratia (grace alone), and soli Deo gloria (to the glory of God alone).
These convictions capture and explain the gospel that we receive, embrace, and believe.
Sola Scriptura means that Scripture alone has final authority over what we believe and how the church lives. This authority is grounded in three foundational truths.
1. Scripture Is Inspired by God
Paul writes in 2 Timothy 3:16-17, “All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be complete, equipped for every good work.”
The phrase “breathed out by God” is the literal meaning of the word translated “inspired.” The doctrine of inspiration is the supernatural act of God who superintended human authors, causing them to write what he intended. Scripture is not merely a collection of religious reflections or the experiences of people, but the words of Scripture are God’s very own words.
God worked through human authors, using their language, culture, personality, experiences, education, and vocabulary. He used ordinary people living ordinary lives, with their distinctive perspectives and voices. We see this diversity throughout Scripture, and in its genres as well. Deuteronomy is a historical narrative while the Psalms are poetic. Daniel is symbolic while Isaiah is prophetic. Luke, the physician, is precise while the author of Hebrews is eloquent. Peter, the fisherman, is practical while Paul, the scholar, is rhetorical.
God did not bypass the human authors. Rather, the divine author worked through human authors without diminishing their distinctive voices or compromising on the holiness of his Word. If God can create, control, govern, and sustain the cosmos, he can certainly speak through human authors. Just as the Son of God entered the world through the incarnation, God communicated his Word through the inspiration of Scripture (2 Peter 1:21).
When God’s Word is rightly understood, interpreted, and applied, it will always prove to be true.
Because all Scripture is God-breathed, we cannot pick and choose which parts we will accept. All of the Old and New Testaments are inspired by God. Therefore, Scripture deserves our utmost reverence and obedience (James 1:22).
2. Scripture Is Inerrant
Because Scripture is inspired by God, it is also inerrant. Biblical inerrancy means that Scripture, in its original writings, does not err in what it affirms. When properly understood and interpreted, Scripture will always prove true in what it says (Prov. 30:5).
People sometimes point to apparent contradictions or difficulties in the Bible. But we need to approach these questions with humility. We are finite, sinful, ignorant, and sometimes blind to the truth. We do not know all the facts, and we do not always understand what Scripture is saying.
It does not mean we should ignore difficult questions. We need time, prayer, careful study, and the help of the Holy Spirit to understand Scripture (2 Pet. 1:19). But we must recognise the difference between a difficulty in our understanding and a failure in God’s Word. When God’s Word is rightly understood, interpreted, and applied, it will always prove to be true.
Scripture provides all the truth we need for our salvation and for living a life of obedience to the glory of God.
The question is not whether we can understand everything immediately, but whether we trust the God who has spoken. And why can we trust Scripture? Because God himself is trustworthy. Yahweh is the true God, Jesus is full of truth, and the Holy Spirit is the Spirit of truth (Jer. 10:10; John 1:14; John 16:13).
Psalm 12:6 says, “The words of the LORD are pure words, like silver refined in a furnace on the ground, purified seven times.” God is faithful, dependable, and reliable. His Word reflects his character.
3. Scripture Is Sufficient
Because Scripture is inspired and inerrant, it is also sufficient. Paul tells us that Scripture is able to make us complete and equip us for every good work (2 Tim. 3:17).
Scripture provides all the truth we need for our salvation and for living a life of obedience to the glory of God (2 Tim. 3:15). It not only communicates the gospel of salvation but also reveals God’s will for a holy life.
This does not mean the Bible directly addresses every question of life or doctrine. Many issues require us to study Scripture carefully and apply its teaching wisely (Rom. 15:4). Nor does the sufficiency of Scripture mean that we do not need the illumination of the Holy Spirit (John 16:13). God has given us his sufficient Word and intends the Holy Spirit to help us understand and obey it (1 Cor. 2:10-14).
We do not need additional revelation to correct or supplement the truth God has given us in Scripture. The traditions of the church can be valuable, but they remain subordinate to God’s Word (1 Cor. 4:6). Scripture alone has the final say (Ps. 119:105).
This is the reason God’s Word must take centre stage in our worship and ministry. The church’s primary calling is to call people back to God’s Word. The proclamation of Scripture must remain central to worship (2 Tim. 4:2; 1 Tim. 4:13).
Jesus and the Authority of Scripture
Jesus himself consistently treated Scripture as the final authority. He turned to God’s Word to settle disputes with the Pharisees and scribes (Matt. 19:1-6), to establish truth and defeat Satan’s temptation (Matt. 4:1-11).
Jesus affirmed that Scripture cannot be broken (John 10:35). He declared that not even the smallest letter or stroke would pass away from the Law until all was accomplished (Matt. 5:18). Jesus also treated the historical accounts and figures of the Old Testament as real (Matt. 12:38-42; Luke 11:51; Luke 4:25-27).
Our problem oftentimes is not understanding but rebellion. We want to decide what is true, what is right, and how we should live. We resist God’s Word when it confronts our desires and challenges our choices (2 Tim. 4:3-4).
But the good news is that Jesus has done what we have failed to do. He obeyed God’s Word faithfully on our behalf (1 John 3:5). He paid for our disobedience on the cross (Phil. 2:8). Through his death and resurrection, he not only forgives our sin but frees us to delight in and obey God’s Word (2 Cor. 5:21).
Sola Scriptura means that Scripture alone has final and total authority over us. Its authority rests on the fact that it is inspired by God, true in all that it affirms, and sufficient to equip us for salvation and faithful living.
