There are very few non-Gospel sources from the 1st century AD that mention Jesus. The main ones are limited, brief, and mostly from the late 1st century. No surviving non-Christian source from during Jesus’ lifetime (roughly 30s AD) refers to him.
Primary 1st-century source: Josephus
Flavius Josephus, a Jewish historian writing in Greek, completed Antiquities of the Jews around 93–94 AD. It contains two references:
- The James passage (Antiquities 20.9.1): In describing the execution of James by the high priest Ananus, Josephus calls him “the brother of Jesus, who was called Christ.” Most scholars accept this as authentic Josephus. It treats Jesus as a known figure and identifies James as his brother.
- The Testimonium Flavianum (Antiquities 18.3.3): A longer passage describing Jesus as a wise man and teacher who did surprising deeds, attracted followers among Jews and Gentiles, and was crucified under Pilate. It also states that his followers reported he appeared to them alive on the third day and calls him the Christ. Most scholars agree the text as preserved has Christian interpolations added later, but many hold that an authentic core referring to Jesus existed in the original.
Josephus also mentions John the Baptist and other figures from the same period, which provides useful context.
Possible additional 1st-century reference
- Mara bar Serapion (Syriac letter, dating uncertain): A Stoic philosopher writes to his son about a “wise king of the Jews” who was executed, after which the Jewish people suffered misfortune, while the king’s teachings lived on. Some date the letter to the late 1st century (around or after 70 AD); others place it later. It does not name Jesus, and the identification is indirect.
Early 2nd-century sources:
- Tacitus (Annals 15.44, c. 116 AD): Roman historian. In his account of Nero blaming Christians for the fire of Rome (64 AD), he states that “Christus,” the origin of the name, “suffered the extreme penalty during the reign of Tiberius at the hands of one of our procurators, Pontius Pilatus.” He treats the movement as a superstition that began in Judea.
- Pliny the Younger (letter to Trajan, c. 112 AD): As governor of Bithynia, he describes Christians meeting before dawn and singing hymns “to Christ as to a god.” This concerns early Christian practice rather than Jesus’ life.
- Suetonius (Lives of the Caesars, c. 120 AD): Mentions that Claudius expelled Jews from Rome because of disturbances instigated by “Chrestus.” Many scholars take this as a reference to Christ or early Christians; others see it as ambiguous.
Summary
Strictly within the 1st century AD, the only substantial non-Christian references come from Josephus. Everything else is either later, indirect, or Christian (such as the Pauline letters from the 50s–60s AD, which predate the Gospels and refer to Jesus’ crucifixion and other events). Later Jewish sources (such as passages in the Talmud) exist but date to centuries afterward and are polemical.
These external sources are short and do not provide detailed biographies. They are mainly used by historians as independent corroboration that a figure named Jesus (or Christus) existed, was executed under Pontius Pilate, and was the starting point of the Christian movement.
The Christ myth theory or mythicism
The view that Jesus never existed as a historical person (often called the Christ myth theory or mythicism) is a minority position. It has almost no support among professional historians and New Testament scholars of any religious background (Christian, Jewish, agnostic, or atheist). The consensus is that a Jewish man named Jesus of Nazareth lived in the early 1st century AD, was active as a teacher or preacher in Galilee, and was executed by crucifixion under the Roman prefect Pontius Pilate. Details beyond that—what he taught, whether he performed miracles, or what happened after his death—are debated.
Here is a summary of the main arguments on each side.
Arguments against the existence of a historical Jesus (mythicist position)
- Lack of contemporary non-Christian sources: There are no surviving Roman or Jewish records from Jesus’ lifetime that mention him. Josephus and Tacitus write decades later. Mythicists argue this silence is significant and that the later references could derive from Christian claims rather than independent knowledge.
- Paul’s letters: Paul focuses on Jesus’ death, resurrection, and theological meaning and provides little biographical detail about an earthly ministry, teaching, or travels. Some mythicists interpret passages (such as “born of a woman” or references to “brothers of the Lord”) as non-literal or as referring to a celestial figure revealed through scripture and visions rather than a recent historical person.
- Mythological and literary parallels: The Gospels contain elements that resemble dying-and-rising god motifs found in other ancient traditions (Osiris, Dionysus, etc.), as well as heavy use of Jewish scripture. Some argue the narrative was constructed from these materials rather than from memory of a real person. The Gospels are late, anonymous, and theologically shaped.
- Alternative origin models: Figures such as Richard Carrier argue that the earliest evidence is compatible with (or better explained by) a purely heavenly Christ who was later historicized into a human biography in the Gospels. They also apply Bayesian probability assessments that they claim lower the odds of historicity relative to mythicism.
Arguments for the existence of a historical Jesus
- Multiple independent early sources: The letters of Paul (written in the 50s AD, roughly 20–30 years after the traditional date of the crucifixion) refer to Jesus’ death, his having a brother named James, and his close associates such as Peter (Cephas). Paul claims personal contact with some of these people. The Gospels (Mark around 70 AD, others later) provide narrative accounts that, despite their theological aims, are treated by most historians as containing usable historical information once later embellishment is filtered. Non-Christian sources include Josephus (c. 93–94 AD), who mentions “the brother of Jesus, who was called Christ” in connection with James’s execution (widely accepted as authentic) and a longer passage (the Testimonium Flavianum) that most scholars see as containing an authentic core describing a teacher executed under Pilate, despite later Christian additions. Tacitus (c. 116 AD) refers to Christus being executed under Pontius Pilate during Tiberius’s reign.
- Criteria of authenticity used in historical study: Historians apply methods such as the criterion of embarrassment (early Christians are unlikely to have invented a messiah executed as a criminal by Romans, or a baptism by John the Baptist that could imply subordination) and multiple independent attestation. Core elements such as a Galilean ministry, association with John the Baptist, and crucifixion under Pilate meet these standards better than pure invention.
- The nature of the movement: A rapid movement centered on a specific crucified figure is more straightforwardly explained by the existence of that figure than by pure myth-making. No ancient source (Jewish, Roman, or otherwise) is known to have denied that Jesus existed; opponents attacked the movement’s claims, not the man’s reality.
- Scholarly consensus: Virtually all scholars trained in the relevant fields accept historicity. Bart Ehrman, an agnostic New Testament scholar who is highly critical of many traditional Christian claims, has written that the non-existence view has no support among competent specialists and that rejecting it makes one look foolish to the field.
How the arguments are generally evaluated
Mainstream historians treat the existence of Jesus as settled for the same reasons they accept other ancient figures who are not attested by contemporary official records: multiple independent sources within a generation or two, consistency with the known historical context, and the difficulty of explaining the data under pure invention. Mythicism is viewed as a fringe position that relies heavily on arguments from silence, selective reading of sources, and comparisons to mythology that most specialists find overstated or anachronistic. It has not produced a widely accepted alternative account of how the early Christian movement began.
The debate is primarily about the strength of the historical evidence for a specific human teacher in 1st-century Galilee, not about the later theological claims made about him (divinity, miracles, resurrection), which historians generally set aside as outside the scope of historical method.