"For we did not follow cleverly devised myths when we made known to you the power and coming of our Lord Jesus Christ, but we were eyewitnesses of his majesty."
â 2 Peter 1:16
Quick Answer
The Gospel of Thomas is a collection of sayings dated to the mid-second century, decades after every eyewitness had died, and it reflects Gnostic theology foreign to the apostles' teaching, denying the bodily resurrection and physical creation's goodness. The canonical Gospels, by contrast, rest on eyewitness testimony written within living memory of Jesus (Luke 1:1-4; 2 Peter 1:16).
Why Lost Gospels Capture Attention
Every so often a headline announces a newly translated lost gospel, hinting that it might overturn everything Christians have believed about Jesus. The Gospel of Thomas is the most famous of these, discovered among a cache of texts at Nag Hammadi, Egypt, in 1945. The intrigue is understandable, who would not want a secret window into Jesus' hidden teaching. But intrigue is not the same as historical reliability, and a close look at Thomas shows why the church never treated it as Scripture.
Part of the appeal is simply the word "lost." It suggests something was taken away from ordinary believers, hidden from them by people who knew better. In reality, these texts were never lost from mainstream Christian teaching in the sense implied, they were known to, read by, and rejected by early church leaders who explain their reasoning in writings that have survived alongside them.
What the Gospel of Thomas Actually Is
Unlike Matthew, Mark, Luke, or John, the Gospel of Thomas is not a narrative at all, it records no birth, no miracles, no crucifixion, no resurrection. It is simply a list of 114 sayings attributed to Jesus, many with a cryptic, mystical flavor quite different from his teaching in the canonical Gospels. Some sayings echo genuine material found in Matthew or Luke; others introduce ideas, like salvation through secret self-knowledge rather than through Christ's atoning death, that sound nothing like the Jesus described by Matthew, Mark, Luke, John, or Paul.
Saying 114 gives a taste of just how far Thomas drifts from anything resembling the Jesus of the New Testament. It has Simon Peter demanding that Mary leave the group because women are not worthy of life, and Jesus responding that he will make her male so she can enter the kingdom of heaven, a saying utterly foreign to the Gospels, where Jesus treats women with consistent dignity and where Paul insists that in Christ there is neither male nor female, but all are one (Galatians 3:28). That single saying illustrates why scholars, even skeptical ones, generally treat Thomas as reflecting later theological disputes rather than authentic memory of Jesus' own teaching.
Dating Tells the Real Story
Most scholars, including many who are not evangelical Christians, date the Gospel of Thomas to the mid-second century, roughly AD 140 to 180, a full century or more after Jesus' death, well beyond the lifetime of any actual eyewitness. Compare that to the canonical Gospels, generally dated between the 60s and 90s AD, and to Paul's letters, some written barely twenty years after the resurrection while eyewitnesses were still alive to confirm or challenge what was being taught (1 Corinthians 15:6). A text written a century after the fact by someone who never met Jesus cannot carry the same historical weight as testimony written within living memory.
Theology at Odds With the Apostles
The content of Thomas reflects Gnosticism, a second-century movement that taught secret spiritual knowledge, not faith in Christ's death and resurrection, as the path to salvation, and that treated the physical body and material world as something to escape rather than as God's good creation (compare Genesis 1:31). This is a fundamentally different religion wearing Jesus' name, not a supplementary source of authentic history about him. Peter warned the church precisely about this danger: "we did not follow cleverly devised myths... but we were eyewitnesses" (2 Peter 1:16), drawing a sharp line between apostolic testimony and later invented stories.
Why the Real Gospels Read So Differently
The canonical Gospels, by contrast, are saturated with the kind of incidental, verifiable detail, named places, named officials, specific customs, that historians expect from genuine eyewitness-based accounts, not later legend. Luke explicitly describes his method: "having followed all things closely for some time past," he decided "to write an orderly account... that you may have certainty" (Luke 1:3-4). John closes his Gospel insisting, "This is the disciple who is bearing witness about these things... and we know that his testimony is true" (John 21:24).
Archaeology has repeatedly confirmed small, easily overlooked details embedded in the canonical Gospels, the existence and location of the Pool of Bethesda with its five porticoes (John 5:2), the political title of Lysanias as tetrarch of Abilene at exactly the time Luke names him (Luke 3:1), and the ossuary of a first-century high priest named Caiaphas. These are precisely the kinds of small, checkable facts a writer distant from the events would be unlikely to get right by accident, and precisely the kind of detail entirely absent from the vague, placeless sayings collected in Thomas.
Eyewitnesses, Not Legends
The Gospel of Thomas and similar texts are genuinely interesting historical artifacts, windows into what later Gnostic groups believed, but they are not lost pieces of the true story of Jesus. The real story was told first, told by people who were actually there, and preserved in the four Gospels the church has treasured from the very beginning.
If you ever encounter a friend excited about a newly publicized "lost gospel," it is worth gently asking two questions together: how early is this text, and what does it actually claim about who Jesus was? In nearly every case, the answers reveal a text far removed in time from the events it describes, teaching a Jesus unrecognizable from the one who died on a real cross and rose from a real, empty tomb.