Is Jesus just a copy of earlier pagan myths like Horus or Mithras?

The Claim

Popularised by the 2007 film Zeitgeist and endlessly recycled online, the claim goes: Jesus is a recycled pagan myth. Horus, Mithras, Dionysus, Attis and others were supposedly born of virgins on December 25, gathered twelve disciples, performed miracles, were crucified, and rose after three days. Christianity, on this account, just repackaged an existing template.

It sounds devastating. It is also, on the specifics, almost entirely false — and the point is easy to verify, because we have the primary sources for these myths.

What the Primary Sources Actually Say

Horus (Egyptian). Born to Isis, who was not a virgin — she conceived Horus by magically reassembling her dismembered husband Osiris. His birth is dated in Egyptian sources to the month of Khoiak (Oct/Nov), not December 25. He had four semi-divine followers (sometimes sixteen), not twelve disciples. He was never crucified, never died on any cross, and there is no three-day resurrection in the Egyptian material. Osiris — a different god — is the one associated with death and a form of underworld revival, and that is not a bodily resurrection into this world.

Mithras (Persian/Roman). In the Roman mystery cult, Mithras was born fully grown from a rock — not from a woman at all, let alone a virgin. He is not recorded as having been crucified or resurrected. Crucially, the Roman Mithraic cult's surviving evidence dates largely from the late first century AD onward — after Christianity was already spreading. Where there are similarities in ritual language, the direction of borrowing, if any, runs the wrong way for the skeptic's argument. Historian Ronald Nash and Mithraic scholar Manfred Clauss both note this dating problem.

Dionysus, Attis, Adonis. These belong to the "dying and rising god" category popularised by James Frazer's The Golden Bough (1890). Modern scholarship has substantially dismantled that category: Jonathan Z. Smith's work showed most of these figures either don't die, don't rise, or "rise" only in the sense of seasonal vegetation cycles — an annual agricultural metaphor, not a claimed one-time historical event with named witnesses.

Three Structural Problems With the Theory

1. The dating is often backwards. Several parallels cited come from sources written after the New Testament. Where a text describing a pagan deity postdates the Gospels by a century or more, it cannot be the Gospels' source.

2. Christianity emerged from Judaism, the most anti-syncretistic culture in the ancient world. First-century Palestinian Jews were fiercely, famously resistant to pagan religious ideas — they had died in revolt rather than accept Greek and Roman religious symbols in the Temple. The idea that Jewish monotheists would construct their Messiah from Egyptian and Persian myth is a historical implausibility of a high order. Jesus' first followers explain him in categories drawn from the Hebrew Scriptures — Passover lamb, suffering servant, Son of Man from Daniel 7 — not from Osiris.

3. Christianity makes a different kind of claim. Mystery religions dealt in timeless, cyclical, symbolic narrative. Nobody in the ancient world thought Osiris' death happened at a particular time under a particular provincial governor, or produced named witnesses to be cross-examined. The Gospels do exactly that: a specific person, executed under a named Roman prefect, in a named city, in a datable window, with a list of living witnesses that readers were invited to check (1 Corinthians 15:3–8). "Once upon a time" and "under Pontius Pilate" are different genres.

What About December 25?

This one is a genuine historical point, but it doesn't establish what's claimed. The Bible never dates Jesus' birth, and no early Christian claimed to. December 25 appears in Roman sources in the fourth century — three hundred years later. Whether it was chosen to coincide with existing winter festivals, or derived from an earlier calculation about the date of the crucifixion (as some scholars argue), it is a later liturgical decision about when to celebrate. It says nothing about whether the underlying events happened, and nothing about the origins of the Gospel accounts written in the first century.

Where Genuine Similarities Exist

It's fair to note that religions do share broad themes — sacrifice, ritual meals, purification, life beyond death. Christians have historically read this not as evidence of copying but as expected: if humans were made for God, longings and intuitions of sacrifice and redemption should turn up widely. C.S. Lewis, who studied ancient myth professionally, took the parallels seriously and concluded the Gospels read as "myth become fact" — the shape ancient people longed for, landing in datable history.

You do not have to accept that interpretation. But the "Jesus is copied from Horus" claim is not a serious historical argument, and it is not made by serious historians of religion in either direction. Bart Ehrman — an agnostic New Testament scholar and no friend of Christian apologetics — dismisses the copycat thesis and the related "Jesus never existed" claim outright in Did Jesus Exist? Wherever the truth about Christianity lies, that particular meme is not where the argument is.

"For we did not follow cleverly devised stories when we told you about the coming of our Lord Jesus Christ in power, but we were eyewitnesses of his majesty." — 2 Peter 1:16