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Is Scripture all we need to live life well? In an earlier episode of Simply Put, we talked about the inspiration of Scripture, which is something the Apostle Paul describes in 2 Timothy. He says all Scripture is breathed out by God. But then he goes further. Scripture, he says, is 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 completeness Paul describes here, the fact that Scripture is able to completely equip a believer for every good work, is what theologians call the sufficiency of Scripture. Paul is saying that the Bible is sufficient in itself to tell us everything we must believe in order to be saved and and what we must do in order to please God. Now, of course, we need to do a little work in terms of understanding what Scripture says and then applying that truth to our lives. But the sufficiency of Scripture tells us that we need no other kind of special revelation in order to live the Christian life. Well, as we've already seen, the Bible doesn't speak exhaustively on every subject. You will look in vain, I'm afraid, for verses that tell you how to prepare an omelette, treat a blister or produce a podcast. That's obviously not what Paul means when he says that Scripture equips us for every good work. What he means is that Scripture gives us sufficient guidance so that we can live lives that are pleasing to the Lord in every way. So even if there are no specific instructions relating to omelets, Scripture does contain what we need to know in order to make that omelet to the glory of God. The sufficiency of Scripture also means that Scripture itself is sufficient to interpret Scripture. That was a very big deal during the Reformation. The Reformers talked about sola scriptura, a Latin phrase meaning Scripture alone. Their point was that, in contrast to the Church's teaching, we do not need an infallible Church in order to understand what Scripture says about salvation and what we must do to honour and please the Lord. People don't require the Pope or the Church or Church tradition to tell them definitively and infallibly what Scripture means. Or to put it another way, only Scripture can interpret itself infallibly, and only the teaching of Scripture can bind the conscience. In other words, only the teaching of Scripture can can compel faith and obedience among God's people. Again, this isn't to rule out the wisdom of consulting other believers, or commentaries, or the way a particular verse has been interpreted historically. These can all be very, very helpful. As we read the Bible. And what's more, the Bible is the church's book. So the church has a role in declaring to God's people the teaching of Scripture and in disciplining God's people according to Scripture. But the church and all other sources, as helpful as they may be, are not infallible interpreters of scripture. We can say that only about Scripture itself. When Jesus criticizes the Sadducees because they didn't believe there would be a resurrection, his rebuke is telling. Is this not the reason you are wrong? He says, because you know neither the Scriptures nor nor the power of God? He asks them, have you not read? As far as Jesus is concerned, then reading the Scripture and knowing it well is what will guard you and I against these kinds of errors. In fact, Jesus goes further and specifically calls out the danger of allowing non biblical religious traditions to become as authoritative as the Bible. He warns the pharisees in Mark 7 that they have left the commandments of God because of their adherence to the traditions of men. I think this is something to which we are extremely vulnerable. It can be easier and more comforting to let other people do the thinking for us to believe that because Pastor X taught something, it must therefore be true. But the sufficiency of Scripture points us back to the Bible to examine what Scripture says about these things and to allow Scripture to be the judge of human teaching rather than the other way round. Similarly, I wonder if many of us seek God's will for our lives in a way that forgets the sufficiency of Scripture. For example, many of us long for God to reveal to us exactly where we should live, who we should marry, or what career to pursue. Because that kind of explicit guidance doesn't appear in Scripture, we may expect God to reveal it to us by some other supernatural means, by inward nudges perhaps, or even audible voices. But that is not how the Lord has told us to seek his will. God has given us in Scripture the principles we must follow when we're making decisions. And we're free to choose any, any option that doesn't violate those principles. So the sufficiency of Scripture reminds us that God has already told us what we need to know in order to be complete equipped for every good work. This is simply put with me, Barry Cooper. If you have a theological word or concept you'd like put simply, then send me an email simply. Putigonier.org Simply put is a podcast from Ligonier Ministries.
Podcast: Simply Put
Host: Barry Cooper (Ligonier Ministries)
Date: March 3, 2026
This episode explores the doctrine of the sufficiency of Scripture—the belief that the Bible alone contains all the instruction a Christian needs to know God’s will, believe in Christ, and live a life pleasing to Him. Barry Cooper unpacks this concept “simply,” highlighting its practical implications for daily Christian living and decision-making.
[00:00–01:40]
“The sufficiency of Scripture tells us that we need no other kind of special revelation in order to live the Christian life well.” — Barry Cooper [01:20]
[01:41–02:35]
“Scripture does contain what we need to know in order to make that omelet to the glory of God.” — Barry Cooper [02:25]
[02:36–03:39]
“Only Scripture can interpret itself infallibly, and only the teaching of Scripture can bind the conscience.” — Barry Cooper [03:25]
[03:40–04:38]
[04:39–05:25]
“Reading the Scripture and knowing it well is what will guard you and I against these kinds of errors.” — Barry Cooper [05:08]
[05:26–06:10]
[06:11–07:00]
“God has given us in Scripture the principles we must follow when we're making decisions. And we're free to choose any option that doesn't violate those principles.” — Barry Cooper [06:49]
This concise, engaging episode offers a clear explanation of the sufficiency of Scripture. Barry Cooper demonstrates why the Bible alone is all the believer needs for faith and life, encourages listeners to measure every teaching by God’s Word, and assures them that while other resources are helpful, none are infallible. The episode reassures Christians that they can confidently make decisions and discern truth by turning to the Bible, letting it be the final authority—simply put.