Is the Bible reliable?

The grass withers, the flower fades, but the word of our God will stand forever.

Isaiah 40:8 (ESV)

Three questions to ask

Calling a book reliable means three things. Do we have what the authors actually wrote? Does it fit what we can check from outside it? And does it read like an honest account? Here’s the evidence on each.

Do we have what was written?

Yes, to a remarkable degree. The New Testament survives in about 5,700 catalogued Greek manuscripts, some very early.¹ For the Old Testament, the Dead Sea Scrolls are more than 1,000 years older than the medieval manuscripts known before them, and many closely match the traditional Hebrew text.² Even Bart Ehrman, a skeptical scholar of the manuscripts, says none of the differences between copies “seriously threatens any significant, traditional, Christian doctrine.”³

Has the Bible been changed over time? covers this in full.

Does it fit what we can check?

Archaeologists keep finding the names of people the Bible mentions, carved or stamped by the people of the time. Lawrence Mykytiuk of Purdue University counts 53 people in the Old Testament whose existence is confirmed this way. His rule is strict: their names must “appear in inscriptions written during the period described by the Bible and in most instances during or quite close to the lifetime of the person identified.”⁴ He counts 30 people in the New Testament confirmed by inscriptions or by writers outside the Bible.⁵

Some examples:

• The Merneptah Stele, an Egyptian victory monument from about 1207 BC, “contains the earliest extra-biblical reference to Israel as a people.”⁶
• The Tel Dan Stele, from the 9th century BC, names the “house of David.”
• King Hezekiah’s seal. In 2015, archaeologists in Jerusalem announced a clay impression of the royal seal of Hezekiah, king of Judah. It was “the first time that a seal impression of an Israelite or Judean king has ever come to light in a scientific archaeological excavation.”⁷
• Sennacherib’s annals. The Assyrian king who invaded Judah in Hezekiah’s day wrote: “As for Hezekiah, the Judean, he did not submit to my yoke.” He claims he besieged “46 of his fortified cities.” He never claims he took Jerusalem, which matches the account in 2 Kings 18-19.⁸
• The Pilate Stone names Pontius Pilate as prefect of Judea.
• The Great Isaiah Scroll shows a whole book of the Bible copied before Jesus was born.

The Evidence Catalog has a page for each, including what it doesn’t show.

Do the Gospels read like history?

The Gospels describe real places, real rulers, and the customs of 1st-century Judea. Non-Christian writers confirm their outline: Jesus lived, gathered followers, and was executed under Pontius Pilate. Did Jesus really exist? sets out that evidence.

Some scholars go further. Richard Bauckham has argued that the personal names in the Gospels match the names actually common among Jews in Palestine at the time, which is hard to explain if the stories were made up far away and much later.⁹ Other scholars dispute what that pattern proves.¹⁰ Peter J. Williams makes a short, readable case for the Gospels’ reliability in Can We Trust the Gospels?, listed on the Shelf.¹¹

The strongest objection

The Gospels came too late and from the wrong people. In a public debate, Ehrman put it this way: the Gospels “were written 35 to 65 years after Jesus’ death,” and “not by people who were eyewitnesses, but by people living later.”¹² NPR summarized his view that the Gospels “are at odds with each other on important points.” In Mark, for example, Jesus dies “asking why God has forsaken him,” while in Luke, “Jesus prays for forgiveness for his killers.”¹³

Response

35 years is within living memory: people who had seen Jesus could still be asked. And the Gospels aren’t the earliest evidence. Paul’s letters are earlier, and he passes on a summary of the faith that scholars date to within a few years of the crucifixion. Did Jesus rise from the dead? covers it.

Differences between the Gospels are real, and Ehrman is right that each writer tells the story with his own emphasis. Mark shows Jesus’s anguish. Luke shows his forgiveness. Those are different portraits, written for different readers, and it’s worth reading each on its own terms. But different emphasis isn’t the same as unreliable history. The four accounts agree on the central events: Jesus’s teaching, his execution under Pilate, and the empty tomb.

What this doesn’t show

Archaeology confirms people and places, not miracles. An inscription can show a king existed. It can’t show that God spoke to a prophet.

Not everything has been confirmed. Many events in the Bible left no direct trace, and scholars still debate some, like how large David’s kingdom was.¹⁴ Mykytiuk’s list is short because his rules are strict.⁴

Scholars still argue about who wrote the Gospels. Many critical scholars, like Ehrman, think later, anonymous Christians wrote them.¹² The 2nd-century evidence supports the names the early church gave, as “Who wrote the Gospels?” below explains.

Questions people ask

Has the Bible ever been proven true?

History can’t prove a whole book true, any more than it can prove a biography true. What it can do is check the parts that can be checked. Where the Bible names kings, governors, cities, and customs, the evidence keeps lining up with it.⁴⁵

Is the Bible 100% accurate?

I believe the Bible is God’s Word and true in what it teaches. As history, it holds up well wherever it can be checked. Apparent contradictions are worth looking at one by one. Most come from different writers telling the same events for different readers.

How much of the Bible is historically correct?

There’s no percentage. Where outside evidence exists, it has repeatedly confirmed the Bible’s people and places.⁴⁵ Many events have no outside evidence either way, which is normal for ancient history.

Who wrote the Gospels?

Matthew, Mark, Luke, and John, just as the early church said. Many critical scholars argue the Gospels began as anonymous books by later Christians and got these names afterward.¹² The historical evidence points the other way.

• The earliest witnesses name them. Papias, a 2nd-century bishop of Hierapolis, passed on what an elder told him: “Mark, having become the interpreter of Peter, wrote down accurately, though not in order, whatsoever he remembered of the things said or done by Christ.”¹⁵¹⁶ About AD 180, Irenaeus, bishop of Lyon, named all four. He wrote that “Luke also, the companion of Paul, recorded in a book the Gospel preached by him.”¹⁷¹⁸
• No one in the ancient church named anyone else. A study in the Journal of Theological Studies found that 2nd-century Christian writings are “replete with references to Matthew, Mark, Luke, and John as authors of Gospels, and there is never any sense that the Gospels were anonymous or written by others.”¹⁹
• These aren’t the names you’d invent. Mark and Luke weren’t apostles. If later Christians had made up authors to give the books weight, it’s hard to see why they’d pick two lesser-known names.

The author of that study, Simon Gathercole of Cambridge, concludes that “the attributions of authorship are original.”¹⁹ The evidence supports him, and the early church.

Go deeper

• Has the Bible been changed over time?: what the manuscripts show.
• What has archaeology found?: the Evidence Catalog.
• Can We Trust the Gospels? by Peter J. Williams, and The Historical Reliability of the New Testament by Craig Blomberg, on the Shelf.

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By Casey Case · Sources last checked October 11, 2026

Sources

1. Institute for New Testament Textual Research (INTF), “<a href="http://web.archive.org/web/20260923181057/How”>https://ntvmr.uni-muenster.de/intfblog/-/blogs/1891824″>How Many Greek New Testament Manuscripts Are There REALLY? The Latest Numbers,” September 29, 2023 (archived copy). ↩︎
2. Leon Levy Dead Sea Scrolls Digital Library, “Introduction,” Israel Antiquities Authority, accessed Oct. 11, 2026. ↩︎
3. Bart D. Ehrman, “Fundamentalists and the Variants in our Manuscripts,” The Bart Ehrman Blog, June 20, 2014. ↩︎
4. Lawrence Mykytiuk, “53 People in the Bible Confirmed Archaeologically,” Biblical Archaeology Society, updated March 22, 2026. ↩︎
5. Lawrence Mykytiuk, “30 People in the New Testament Confirmed,” Biblical Archaeology Society, February 9, 2025. ↩︎
6. Center for Online Judaic Studies, “Stelae and Reliefs of Pharaoh Merneptah, c. 1207 BCE,” accessed Oct. 11, 2026. ↩︎
7. Hebrew University of Jerusalem, “Impression of King Hezekiah’s royal seal discovered in excavations in Jerusalem,” ScienceDaily, December 2, 2015, quoting the excavation director, Eilat Mazar. ↩︎
8. Center for Online Judaic Studies, “Hezekiah’s Defeat: The Annals of Sennacherib on the Taylor, Jerusalem, and Oriental Institute Prisms, 700 BCE,” accessed Oct. 11, 2026. ↩︎
9. Robert Cara, review of Richard Bauckham, Jesus and the Eyewitnesses, Reformed Theological Seminary’s journal, Summer 2018. ↩︎
10. Gregor and Blais, study of the Gospel name statistics, Journal for the Study of the Historical Jesus (2023). ↩︎
11. Crossway, “Can We Trust the Gospels?,” accessed Oct. 11, 2026. ↩︎
12. “Is There Historical Evidence for the Resurrection of Jesus? The Craig-Ehrman Debate,” College of the Holy Cross, 2006, transcript at Reasonable Faith. ↩︎
13. “The Gospel Truth: Sometimes A Little Hazy,” Fresh Air, NPR, March 4, 2009. ↩︎
14. “The Tel Dan Inscription: The First Historical Evidence of King David from the Bible,” Biblical Archaeology Society, accessed Oct. 11, 2026. ↩︎
15. “<a href="https://web.archive.org/web/20260731042334/Papias”>https://www.britannica.com/biography/Papias”>Papias,” Encyclopaedia Britannica (archived copy, read Nov. 1, 2026). ↩︎
16. Papias, quoted in Eusebius, Church History 3.39.15, trans. Arthur Cushman McGiffert, Nicene and Post-Nicene Fathers, Second Series, vol. 1, New Advent. ↩︎
17. Irenaeus, Against Heresies 3.1.1, trans. Alexander Roberts and William Rambaut, Ante-Nicene Fathers, vol. 1, New Advent. ↩︎
18. “<a href="https://web.archive.org/web/20261003080146/Saint”>https://www.britannica.com/biography/Saint-Irenaeus”>Saint Irenaeus,” Encyclopaedia Britannica (archived copy, read Nov. 1, 2026). Dates Against Heresies to about 180. ↩︎
19. Simon Gathercole, “The Alleged Anonymity of the Canonical Gospels,” Journal of Theological Studies 69, no. 2 (2018): 447-476, abstract. ↩︎