Lost Scriptures, Other Gospels, and Why They Were Not Included

Imagine walking through a museum and stopping in front of an ancient manuscript behind glass. The small sign beside it reads, “Lost Gospel.” That phrase immediately suggests a story. If a gospel was lost, perhaps someone hid it. Maybe church leaders did not want people to read it, or it presented a version of Christianity that threatened the one that eventually became dominant. It is an interesting possibility, and it has been repeated often enough that many people assume something like that must have happened. But the history is more complicated.

Ancient Christians wrote far more books than the twenty-seven that eventually became the New Testament. Some were letters, others gave practical instruction to churches, or told stories about Jesus or the apostles. Others claimed to preserve teachings that had been passed down secretly. A few carried the names of people we recognize from the New Testament. Those writings are real and worth examining.

Before we describe them as books that were “left out” of the Bible, we need to ask a more basic question. Were they ever standing beside Matthew, Mark, Luke, and John with the same claim to be Scripture? That question changes the way we approach the entire subject.

Not Every Book Outside the Bible Was the Same

The phrase “lost books of the Bible” can make it sound as though there was once a second Bible sitting beside the one we have today. There was not. The books outside the New Testament had very different histories. Some were highly respected by early Christians. The Didache, for example, contains practical instruction about Christian living and church practice. The Shepherd of Hermas was also read widely and valued by many Christians. These writings were not treated as dangerous simply because they were not included in the New Testament. Christians could read them, learn from them, and still distinguish them from the writings they regarded as Scripture. That distinction is easy to understand if we think about Christian writing today. A good sermon can teach truth without becoming Scripture. A devotional can strengthen someone’s faith without becoming part of the Bible. A Christian book can be deeply useful without carrying the same authority Christians believe belongs to Scripture.

Early Christians could make similar distinctions. Other ancient writings had very different stories. Some appeared later and claimed to contain secret teachings of Jesus or the apostles. Some were connected to Christian communities whose beliefs had moved in directions that differed sharply from the churches that traced their teaching back to the apostles. So instead of placing every ancient Christian document into one category called “books the church removed,” we have to look at them one at a time.

The Gospel of Thomas Is Not Simply a Fifth Gospel

The Gospel of Thomas is probably the best-known example. Its title makes it sound like another Gospel that might fit naturally beside Matthew, Mark, Luke, and John. But when we read it, we find something quite different. The Gospel of Thomas is mainly a collection of sayings attributed to Jesus. It contains 114 sayings rather than a continuing account of His ministry. There is no extended story of Jesus traveling through Galilee and Judea. There is no Passion narrative like the ones found in the four Gospels. The sayings are simply gathered together. Some sound very familiar because they resemble sayings found in the New Testament and others sound quite different.

Scholars continue to debate exactly when Thomas’ Gospel was written. Some believe parts of its material may preserve early traditions, while many date the work to the second century in its present form. That uncertainty is worth acknowledging. We do not need to make Thomas as late as possible in order to explain why it did not become part of the New Testament. The more important question is how Christians actually received it.

Thomas never developed the same broad history of use that Matthew, Mark, Luke, and John did. By the time later Christian writers discussed it explicitly, they were already distinguishing it from the Gospels widely received in the churches.

Thomas remains historically interesting. It can help us understand how sayings about Jesus continued to circulate and how some Christian communities thought about Him. But that is different from saying it once stood beside Matthew as an equally recognized Gospel and was later removed.

The Gospel of Judas Comes From a Different World

The Gospel of Judas attracts attention for an obvious reason. In the New Testament, Judas Iscariot betrays Jesus. In the Gospel of Judas, the relationship is presented very differently. Judas receives special teaching from Jesus, and the familiar betrayal is placed inside a much different understanding of Jesus, the physical world, and salvation.

The surviving manuscript is later, but the work itself was already known by the late second century because Irenaeus mentions a Gospel of Judas while arguing against Christian groups whose beliefs he rejected. That makes the Gospel of Judas an ancient Christian writing. But it also gives us some historical perspective.

By the same general period, Irenaeus was already speaking about Matthew, Mark, Luke, and John as the four Gospels received by the churches. Whatever else we may think about his theology, his writing shows that the fourfold Gospel collection was already well established before later church councils met to discuss the boundaries of Scripture. That means the historical picture is not one in which Matthew, Mark, Luke, John, Thomas, Judas, and many other Gospels all stood on equal ground until church leaders finally chose four. Their histories were already different.

The Gospel of Peter Lets Us Watch the Process

The Gospel of Peter gives us an especially helpful glimpse into the way Christians handled unfamiliar writings. Near the end of the second century, a bishop named Serapion learned that a Christian community was using a Gospel attributed to Peter. He did not appear to reject it immediately simply because he had never seen it before. He looked into it.

After examining the writing more closely, he concluded that although some parts agreed with Christian teaching, others reflected ideas he believed did not originate in the apostolic faith. He rejected the book while making an important distinction: Christians accepted Peter himself, but that did not mean they accepted every writing that carried Peter’s name. An apostle’s name was not enough.

A Christian leader could encounter a writing, investigate it, compare it with the teaching already received in the churches, and decide that the name on the page did not prove the book came from the person it claimed. That is much closer to the historical process than the picture of church leaders simply hiding books they disliked.

A Famous Name Did Not Guarantee Acceptance

Many ancient writings bore the names of important biblical figures, which naturally attracted attention, but early Christians understood that a book could claim an apostolic origin without actually coming from an apostle. That is one reason the date of a writing matters. If a book appeared generations after the person whose name it carried, that raised an obvious question about its connection to the earliest Christian witnesses. This does not mean later writings are worthless. A second-century Christian book can tell us a great deal about what some Christians in the second century believed. A third-century text can help us understand Christian debates in the third century. But that is not the same as asking what Jesus and His earliest followers taught in the first century. Those are different historical questions.

Some Books Were Simply More Widely Received

Modern readers can place the Gospel of Matthew and the Gospel of Judas side by side on a bookshelf or open both on a computer within seconds. That makes them feel equally available, but they were not equally received in the ancient world.

Matthew, Mark, Luke, and John circulated broadly through Christian communities. They were copied, quoted, taught, and read across wide geographic areas. By the late second century, we already find Christian writers referring to them together. Other writings had much more limited histories. Some were known in particular regions and used by particular Christian groups. Some were very respected but not treated as Scripture. That does not mean every church everywhere followed exactly the same practice from the beginning. We already know from our previous post that they did not. But there is a major difference between saying, “Some Christians read this book,” and saying, “This book was widely received across the churches as apostolic Scripture.” That distinction becomes important whenever we hear about a “lost gospel.”

Were Some Books Suppressed?

Sometimes, Christian leaders opposed certain writings. They argued against books they believed taught false ideas. Some texts stopped being copied as the communities that valued them disappeared. In other cases, manuscripts survived only because someone preserved them in unusual circumstances. So we should not pretend there was never conflict. There was. But saying that some books were opposed is different from saying that church leaders eliminated a collection of equally accepted rival Gospels and replaced them with Matthew, Mark, Luke, and John.

The evidence points to a more complicated story. By the late second century, the four canonical Gospels already had a broad place in Christian churches. At the same time, alternative writings and alternative interpretations of Christianity also existed. Later writers could distinguish between books widely accepted as Scripture, books that were debated, books that were respected but noncanonical, and writings they believed falsely claimed apostolic authority. The story is not that every Christian writing once stood on equal ground. They did not.

Why Leave Out a Good Christian Book?

This may actually be the more interesting question. If a book like the Shepherd of Hermas could be spiritually useful, why was it not included? Because usefulness was not the same thing as Scripture.

The Shepherd of Hermas was read and respected by many Christians. It was important enough to be copied alongside biblical books in one famous ancient manuscript. Yet Christians could still distinguish it from the writings they regarded as belonging to the church’s apostolic foundation. That distinction tells us something about how early Christians thought. They were not simply dividing books into “books we like” and “books we hate.” A book could be good and helpful. It could even be read in church. Christians still understood that it did not belong to the same collection as Matthew, Romans, or 1 Peter. That is difficult to explain if we assume that every excluded book was rejected because church leaders feared what it said.

These Books Are Still Worth Reading

None of this gives us a reason to ignore the writings outside the New Testament. They are worth reading precisely because they help us understand early Christian history.

The Gospel of Thomas can show us how sayings attributed to Jesus circulated beyond the four Gospels. The Gospel of Judas introduces us to a very different Christian worldview. The Shepherd of Hermas helps us see how some early Christians thought about repentance and Christian living. The Didache gives us a glimpse into early Christian practice.

These writings can teach us a great deal. But we learn more from them when we allow each book to be what it actually is. A writing does not have to be Scripture to be historically valuable. Calling something a “lost book of the Bible” can sometimes confuse that distinction before we even begin examining it.

A Fair Conclusion

So what about the books left out of the Bible? There really were other gospels, letters, teachings, apocalypses, and Christian writings. Some of these writings were highly respected and circulated early, while others appeared much later and carried the names of apostles or other well-known Christian figures. They also did not all reflect the same beliefs. Some stayed close to the teaching Christians traced back to the earliest witnesses of Jesus, while others developed ideas that moved in very different directions. Their histories were not all alike. Some could be traced much closer to the apostolic period and were known across many churches, while others appeared later or circulated more narrowly. That difference affected how early Christians viewed them, especially when they were asking whether a writing truly belonged among the books they received as Scripture.

The phrase “lost books of the Bible” can make it sound as though these writings once belonged to the Bible and were later removed.

In many cases, that is exactly what still needs to be demonstrated. The better approach is to begin with the history of each writing. When did it appear? Who used it? How widely did it circulate? What did Christians think about it? Was it connected to the earliest witnesses of Jesus? Was it treated as Scripture, or was it valued in some other way? Those questions do not make the alternative books disappear. They help us understand what they actually were. Once we make that distinction, another question comes into focus.

Matthew, Mark, Luke, and John may have been recognized earlier and more widely than the other Gospels. But does that mean what they tell us about Jesus is historically trustworthy?

That is where we go next.

Free Resource: Explore the Books Left Out of the Bible

If you want to think through this question more carefully, I created a free companion resource called What About the Books Left Out of the Bible? A Guided Reflection Worksheet for Seekers and Believers.

The worksheet will help you examine the phrase “lost books of the Bible,” compare the different histories of ancient Christian writings, consider why date and apostolic connection matter, and think through the difference between a useful Christian text and one received as Scripture.

Where We Go Next

Our next Theological Thursday question will be:

Can We Trust the Four Gospels?

Why Matthew, Mark, Luke, and John Deserve Historical Consideration

We will look at when the Gospels were written, how close they are to the events they describe, their relationship to eyewitness testimony, why they sometimes tell the same events differently, and whether they deserve to be taken seriously as historical sources.