Caleb Friedeman: Were the Christmas stories history?

Do the gospel birth narratives contradict each other? The differences between Matthew and Luke are real, but New Testament scholar Caleb Friedeman argues they are compatible, and his comparison of the birth stories against 95 other ancient biographies suggests Matthew and Luke were better positioned to get the story right than almost anyone else writing biography in the ancient world. That is worth knowing, because for decades scholars have claimed the ancient birth narrative was never meant to be read as history in the first place.

The objections are familiar, and they are fair questions. Matthew and Luke give us different genealogies. Luke mentions a census that no other ancient source seems to confirm. Matthew has the Magi; Luke has the shepherds. For a lot of people, that is where the investigation ends: the stories don’t match, so they can’t be trusted. Caleb thinks that conclusion moves way too fast, and in this Faith Lab conversation he walked us through the research that says why.

Closer to the events than almost any ancient biographer

Caleb analyzed the birth material in 95 ancient biographies from authors like Plutarch, Suetonius, Cornelius Nepos, and Philo. One of the things he tracked was the time gap between when the subject was born and when the biographer wrote. The average was 360 years.

That means most ancient biographers were relying almost entirely on written sources, with virtually no access to eyewitnesses or even to people who knew eyewitnesses. Matthew and Luke were writing within decades of the events, close enough to talk to people in Jesus’ immediate circle. Caleb puts it plainly:

“Matthew and Luke are breathing rarefied air when it comes to their proximity to the events they’re reporting. And they would have almost certainly had the opportunity to interview people who were close to eyewitnesses.”

Proximity means better sources, and it means something else too: a higher cost of getting things wrong. If you are writing within living memory, people can check your work. The likelihood of simply making things up drops sharply when your audience includes people who were actually there.

There is a prior step to this argument. In our first conversation with Caleb, he made the case that Matthew and Luke wrote their birth material with historiographic intent, meaning they meant these stories to be historically true, not legendary or mythical. The question this time was whether they were actually in a position to deliver on that intent. Based on the comparative data, the answer is a strong yes.

Why the genealogies are different

This is probably the most common objection. Matthew traces Jesus’ lineage through Solomon. Luke traces it through Nathan. Both go back to David, but through different sons. How can both be right?

Caleb’s answer starts with our modern assumptions. In the Western legal tradition you can only be the child of one set of parents at a time; adoption ends one legal relationship and begins another. Ancient Judaism did not work that way. Caleb has published research in the New Testament Studies journal showing that Jewish adoption practices allowed a person to be regarded as the son of more than one father at the same time.

The clearest biblical example is levirate marriage. If a man died without a son, his brother could raise up a descendant on his behalf, and the child born from that arrangement could be credited both to the biological father and to the deceased man whose line was being preserved.

“Jewish genealogies can be very complex. And particularly in a royal line like David’s line, where it might be important to trace a line of descent, I think there’s a lot of room for complexity.”

So what are Matthew and Luke doing? Caleb argues that Matthew is tracing the royal line, the succession of kings descending from David through Solomon, while Luke traces a non-royal line through David’s son Nathan. If Jesus’ actual lineage intersected both branches of the Davidic family tree, which is plausible given how royal lines merge over centuries, each author may simply have chosen to highlight one side. Luke may even have known Matthew’s genealogy and deliberately picked the other line to complement it rather than duplicate it. Two different, compatible pieces of a complex family history.

What about the census in Luke?

Luke’s census under Quirinius is the other flashpoint. Critics point out that no other ancient source confirms a census at the time Luke seems to describe, and for some readers that silence is enough to sink the whole account.

Caleb pushes back in two steps. First, there is genuine scholarly debate about what Luke is even claiming. Some scholars read the Greek as referring to a census that happened before the well-known one under Quirinius, which would resolve the chronological tension entirely.

Second, the absence of a second source does not mean an event never happened. Luke may simply be the only surviving ancient author who recorded it.

“Some people want to say, because Luke is the only source that talks about this, well, that must mean that it can’t have happened. And I want to say perhaps Luke actually is a reliable source that we should take seriously on this point.”

He added a detail that rarely comes up in these discussions. Luke was almost certainly writing significantly earlier than Josephus, the historian people usually try to match him up against, which means Luke may actually be closer to the events than the source being used to question him.

Different details are not contradictions

Matthew gives us the Magi; Luke gives us the shepherds. Matthew tells the flight to Egypt; Luke tells the presentation at the Temple. If both accounts are true, why don’t they overlap more?

Because each author had a purpose and selected events that served it. Luke structured his birth narrative around seven scenes, each featuring what Caleb calls “inspired speech,” a moment where an angel or a human speaks on behalf of God. The climactic seventh speaker is Jesus himself, talking to his parents in the Temple. That is a deliberate literary and theological design, not an error of omission.

Luke may also have known Matthew’s account and intentionally avoided duplicating it. Caleb points to the body of Luke’s gospel as evidence: Luke takes material from Matthew’s Sermon on the Mount and distributes it differently across his own narrative. An author already rearranging shared material elsewhere would plausibly do the same with the birth stories.

“I don’t think it’s a realistic historiographic standard to say these two sources must overlap on everything in order for us to take either one of them seriously.”

Think of two eyewitness accounts of the same car crash. They notice different details, emphasize different things, and tell the story from different angles. As long as the accounts are compatible, we normally try to put them together rather than throw both out.

How to read the birth narratives well

Caleb offered three practical habits.

First, read the birth narratives the same way you read the rest of the Gospels. Scholars have often treated Matthew 1 and 2 and Luke 1 and 2 as a special case, uniquely deserving of skepticism, and Caleb argues that treatment is unwarranted. These chapters are doing the same kind of work as everything that follows them.

Second, learn how ancient biographies actually worked. Scholars like Mike Licona and Craig Keener have documented the conventions ancient biographers operated within: reordering events, compressing timelines, selecting material for thematic purposes. Once you know those conventions, the differences between accounts look very different.

Third, pay attention to the theology. Matthew and Luke are recording history, and at the same time they are telling you who Jesus is, often through Old Testament allusions. Catching those connections can turn a passage from a dry historical record into something deeply meaningful.

Common questions

Do the gospel birth narratives contradict each other?

The differences between Matthew and Luke, in their genealogies, their details, and their emphases, are real, but Caleb Friedeman argues they are compatible rather than contradictory. Each author selected and structured material according to his purpose, the way any two ancient biographers covering the same subject did.

Were the Christmas stories meant to be historical?

Yes, by the standards of their own genre. Friedeman’s analysis of 95 ancient biographies shows the birth narratives display the same historiographic features found in ancient biographical writing that was clearly intended to be reliable, and Matthew and Luke wrote far closer to the events than the average biographer’s 360-year gap.

Is there evidence for the census in Luke’s gospel?

No other surviving ancient source confirms the specific census Luke describes, but there is real scholarly debate about what Luke is claiming, and some scholars read the Greek as pointing to a census before the famous one under Quirinius. Luke was also probably writing earlier than Josephus, the historian he is usually checked against.

Why do Matthew and Luke have different genealogies for Jesus?

Matthew traces the royal Davidic line through Solomon, while Luke traces a non-royal line through David’s son Nathan. In ancient Jewish practice a person could be legally regarded as the son of more than one father, so both genealogies can be accurate reflections of one complex family history.