Questions about the origins of modern ethnic Jews (the Ashkenazi and Sephardic Jews in particular, but not exclusively) did not arise recently, nor did they originate with modern critics of Israel. They arise because God destroyed the Temple, and with that destruction, not only their genealogical records, but also their cohesion as a people. Over time, multiple theories have emerged to account for their history, especially where genetic lineage, religious identity, and historical geography appear to diverge.
One of the oldest and most persistent of these frameworks is what is commonly called the Edomite Theory, and you might have heard quite a bit about it recently. This article explains what that theory claims, why it has appealed to some readers, and how accurate it might be. Here, the goal is explanation, not judgment.
THE EDOMITE THEORY
The Edomite Theory begins with the biblical relationship between Jacob and Esau. Esau is explicitly identified with Edom. “So Esau settled in the hill country of Seir; Esau is Edom” (Genesis 36:8). From the outset, Scripture frames the two brothers not merely as individuals but as progenitors of peoples whose destinies unfold in tension. Before either is born, the rivalry is projected forward in time. “Two nations are in your womb, and two peoples from within you shall be divided” (Genesis 25:23).
This rivalry becomes a recurring theme in Israel’s prophetic literature. Edom is consistently portrayed as a hostile neighbor and betrayer of Israel, particularly at moments of Israel’s weakness. Obadiah condemns Edom for standing aloof during Jerusalem’s fall. “On the day that you stood aloof… you were like one of them” (Obadiah 11). Ezekiel likewise indicts Edom for perpetual enmity. “Because you cherished perpetual enmity and gave over the people of Israel to the power of the sword” (Ezekiel 35:5). Malachi later universalizes the conflict in covenantal language. “Yet I have loved Jacob, but Esau I have hated” (Malachi 1:2–3).
Within the Edomite Theory, these passages are read as evidence of an enduring, trans-generational rivalry. Edom is understood not to disappear from history, but to persist through absorption into the people now known widely as Jews. Scripture itself records Edomite presence within Judah after the exile. Edomites occupied territory in the south, later known as Idumea (Nehemiah 4:7). And by the intertestamental period, Idumeans are a known population adjacent to and within Judea.
This historical presence is then paired with later developments. Under the Hasmonean rulers, Idumeans were forcibly converted to Judaism, a fact recorded by Josephus. The Edomite Theory treats this as very important to note. Over time, this allegedly produced leadership structures that were Jewish in law and custom but Edomite by blood and genetics.
Herod the Great becomes the central historical exhibit of this. He is explicitly identified as an Idumean in historical sources. Though he rebuilt the Temple, his authority came from Rome, not Davidic lineage. Within the theory, Herod is treated not as an anomaly but as the rule. His reign is read as evidence that Edomite power had come to dominate Jewish institutions from within.
In the New Testament, proponents of the theory interpret Jesus’ confrontations with Jewish leaders genealogically. When Jesus tells his opponents, “If you were Abraham’s children, you would be doing the works Abraham did” (John 8:39), and later, “You are of your father the devil” (John 8:44), the theory reads these statements not merely as judgments on unbelief, but as denials of ancestral legitimacy. In this reading, Jesus is rejecting their claim to Abrahamic descent itself. Lineage, not belief alone, is said to be what Jesus is taking exception with.
From there, the theory extends beyond the first century. After the destruction of the Temple in AD 70, Rabbinic Judaism emerges as the dominant form of Jewish religious life. The Edomite Theory interprets this development as the institutional consolidation of a displacement that had already occurred. Prophetic judgments against Edom are reread as forward-looking critiques of post-Temple Judaism rather than as historically situated condemnations of ancient Edomites (to be fair, there are some really good comparisons between the besetting sins of modern Jews and the behavior of ancient Edomites, which even Augustine pointed out; I have written about that previously).
Within this logic, the Edomite Theory functions as a reconciliation mechanism. It allows biblical promises to Israel to remain intact while explaining perceived discontinuities between ancient Israel and later Jewish history. The Jews behave this way because they’re Edomites. Israel is not understood to have failed or been rejected, but to have been internally supplanted by Edom, fulfilling the long rivalry first announced in Genesis.
WHY THE THEORY HAS APPEALED TO SOME READERS
The appeal of the Edomite Theory is not difficult to identify. It draws directly from biblical language and prophetic imagery, which gives it a scriptural vocabulary familiar to many. It also offers a simple explanatory structure. Complex historical developments are reduced to a single displacement narrative that accounts for theological conflict, political power, and religious divergence between the Israel that should be and the Israel that is.
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The theory also resolves tension without requiring readers to engage deeply with diaspora history. Rather than explaining how Jewish communities expanded in detail and through different theories (as I have done for you in previous articles on this topic at I2I), and persisted across continents, the theory attributes those developments to an early substitution of real Israel with fake Israel (Edom) that redirected history from the outset. In other words, the theory simplifies things a lot, and people like simple.
For some, the theory has also functioned as a way to preserve a strong distinction between biblical Israel and later Jewish wickedness and bad behavior without denying the authority of the Old Testament. It reframes conflict as an ancestral bait-and-switch.
These features explain the theory’s persistence over the centuries, regardless of whether its conclusions are true. The conclusions explain a lot, and people are also fond of explanations.
WHAT THE EDOMITE THEORY ADDRESSES
By late antiquity and the early medieval period, Jewish communities existed across the Mediterranean world, in Asia Minor, Persia, North Africa, and Europe. These communities were numerous, organized, and ethnically diverse. Intermarriage with other ethnicities and groups was incredibly common. A matrilineal rather than patrilineal system (tracing ancestry through mothers rather than fathers) had to be invoked by the rabbis because the sexual promiscuity in the Jewish diaspora was so widespread that judging anything by paternity was next to impossible. Things got messy. The different Jewish groups around the world spoke different languages, developed distinct liturgical traditions, and preserved different communal memories.
Ashkenazi and Sephardic Jews did not just practice Judaism differently from one another. They developed along completely separate historical trajectories. They’re wildly different people. Their differences in pronunciation, ritual, legal emphasis, and cultural orientation (not to mention genetics) point to formation in different settings over long periods of time. And that’s putting it mildly.
The Edomite Theory attempts to account for this complexity by denying genealogical continuity at a critical early stage. Even in the New Testament era, they argue, the Israelite genetic lineage was already badly compromised. And given that we know for a fact that the inter-ethnic intermingling of Jews with the peoples of their lands of exile was off the charts even in biblical days, anyone should be sympathetic to the theory’s presumptions. What matters here is that the theory exists because the underlying problem is real. By the time God swept Israel’s genealogical records into the dustbin of history, their genetic purity was already in the dumpster.
Large diaspora populations, limited evidence of mass migration from Judea, and significant internal differences between the various “Jewish” groups around the world invite a theory like this to present itself. Any theory that addresses Jewish origins is responding to those facts, not inventing them. In other words, the Edomite Theory is attempting to answer legitimate questions; it’s not making them up.
A NECESSARY PAUSE
At this stage, it is neither necessary nor helpful to decide whether the Edomite Theory is right or not. What matters is understanding what it claims and why it arose. It is one attempt among several to explain where modern Jews come from and why their various branches are so different from one another, yet so similar to the cultures they came from.
I’m going to give a run-down of some of those competing theories, but it’s necessary first to examine how Jews themselves historically understood their lineage. Why is that? Because any attempt to answer the questions that the Edomite Theory answers is labeled an “antisemitic conspiracy theory.” The entire notion of Zionism is dependent upon the claim that Jews have some kind of ancient land grant based on their ancestry. Any claim that Jews are not ethnic descendants of the ancient Israelites completely invalidates the main underlying rationalization for a Jewish ethnostate in Israel, especially if it requires displacing or subjugating its indigenous inhabitants who have been there for ages.
Think to yourself what’s at stake. At best, if modern Jewish ancestry is truly what they present it to be, and what Dispensationalist evangelicals claim it to be, it is still an argument that an ethnic group that has been in Europe for millennia is somehow entitled to land in Palestine because their ancestors are from there, and that this ancient land claim supersedes that of other indigenous people who have lived there continuously for millennia. That’s a really, really hard ask. Nobody but the most committed Zionist who is utterly convinced of Bible prophecy would dare argue that an Arab or Christian whose family has lived in Bethlehem or Jerusalem for thousands of years would need to scoot over so that a Russian, speaking Russian and looking Russian, can move in next door, or take their home, on the grounds that their great-great-great-great-great-great-great-great-great grandmother used to live down the block.
Now imagine what happens to this argument if it’s ever determined that the Russian’s ancestors are not from Palestine, but from Turkey. Or Greece. Or Persia. The entire Zionist scheme has now stepped on a land mine. And that is why, since Theodore Herzl invented political Zionism, and only since then, the topic has become taboo.
For most of Jewish history, these questions were neither scandalous nor threatening. They were ordinary questions raised by ordinary facts. Explaining how this came to be was part of Jewish historical self-understanding, not an attack on it.
What most people don’t know is that for centuries, Jews largely did not even claim to have biological purity. What was the point? What was to be gained from it? They weren’t trying to cash in a land deed. They had no intention, or desire, to migrate to Palestine. Many didn’t want to, because they had plenty of money and influence in whatever country they resided. And although it is mostly true that Jews have been kicked out of many countries for values that conflicted with Christianity, the pogroms and persecution were not constant. They did very well in plenty of places for a long time, right up until they didn’t.
Instead, Judaism historically defined itself through law, dress, diet, customs, and communal continuity. Genetic arguments were almost nonexistent until something could be gained from them. Conversion was not an embarrassment. Mixed ancestry was not destabilizing. Jewish identity functioned as a civilizational inheritance rather than a genetic one.
Because of this, Jews themselves asked questions that later generations would treat as dangerous. Much of what we know about Jewish ancestry comes from their own written histories. Many of the theories, including the one I believe is accurate, are called antisemitic today, even though they come from Jewish written histories explicitly claiming origins in conversion to Judaism rather than ethnic ancestry.
INTERNAL JEWISH AWARENESS OF DIASPORA AND CONVERSION
From antiquity onward, Jewish sources acknowledged that Judaism expanded through means other than reproduction. The Hebrew Scriptures themselves incorporate outsiders into Israel within the pages of the Old Testament. Rabbinic literature formalized this reality by treating converts as fully Jewish, not as partial or second-class members because they weren’t Semitic. Lineage was regulated, but it was not absolutized. This is one huge, accurate, and good reason to believe that modern Jews are probably not ethnically Semitic to any meaningful degree. Rabbinic Judaism never had guardrails establishing ethnic membership as important. Neither could it, because most Jews are not, in fact, Semitic.
In the medieval period, Jewish writers openly discussed large-scale conversions that formed Jewish communities from other ethnic groups. This was not a fringe theory. It was their written history, and it was established as fact. The Khazar conversion was treated in Jewish sources as a historical event, not as a scandal. The point of such discussions was not to deny Jewishness, but to explain how Jewish communities came to exist in places far removed from Palestine.
Ashkenazi Jews themselves preserved traditions that located their origins not directly in Judea, but in earlier diaspora centers. Rome, southern Italy, and the eastern Mediterranean appear frequently in medieval Jewish memory as formative locations where they originated, not merely places they passed through. These traditions make little sense if uninterrupted descent from Palestine were assumed or required.
Sephardic Jews also recognized Ashkenazi distinctiveness without interpreting it as illegitimacy. One Jewish group would look at another Jewish group as ethnically distinct, and it didn’t matter, because ethnicity was not a central component of Jewish identity. If anything, an honest person should conclude that if ethnic differences were never treated as a big deal, then ethnic distinctions probably weren’t maintained with any kind of discipline.
THE THEORY I PREFER
What follows is my theory regarding the genetic and historical origins of modern Jews, particularly the Ashkenazi population that today constitutes the large majority of world Jewry, which I previously wrote about here.
The population known as Ashkenazi Jews today accounts for roughly four-fifths of the global Jewish population. The name “Ashkenaz” itself is borrowed from the biblical Table of Nations, where Ashkenaz appears as a descendant of Noah.
Historically, Ashkenazi communities are first clearly identifiable in the Rhineland during the early medieval period. From there, they spread across Central and Eastern Europe, especially after the disruptions of the Crusades. Over time, these communities developed distinctive features that set them apart from Jews formed in Iberia, North Africa, or the eastern Mediterranean. Differences in Hebrew pronunciation, synagogue chant, language usage such as Yiddish, and legal custom eventually became the markers distinguishing Ashkenazi Jews from Sephardic Jews.
By the early twentieth century, Ashkenazim made up an overwhelming majority of the world’s Jewish population. After the Jewish genocide of the 1930s and 1940s, they remain the dominant demographic group within global Jewry, even while the modern State of Israel reflects a roughly even division between Ashkenazi and Sephardic populations.
The core claim of my theory is this: Ashkenazi Jews are not biologically descended in any meaningful sense from the ancient Israelites or from Abraham. Rather, they are the descendants of non-Levantine populations, primarily from the Greco-Roman and Iranian worlds, who adopted Judaism through conversion during late antiquity and the early medieval period.
This position was not controversial in earlier centuries. Prior to the rise of modern political Zionism, Jewish writers themselves frequently acknowledged this theory, though they didn’t call it a theory. They called it a fact. It was their official written history. After the destruction of the Second Temple and the loss of genealogical records, there was no practical way to maintain claims of tribal or ancestral purity, even if one had wished to do so.
Genetic and medical research in the modern era, I argue, has confirmed what was long understood in historical terms. Ashkenazi Jews show strong genetic affinities with southern European and Anatolian populations, as well as measurable connections to Iranian groups. These patterns are consistent with a population formed in the eastern Mediterranean and Asia Minor, not in ancient Palestine, and later migrating into Europe. Under this theory, Ashkenazi Jews did not pass through the land of Israel en route to Europe, but developed independently in diaspora regions long after the biblical period.
The smaller Near Eastern component sometimes identified in Ashkenazi genetics does not establish descent from Abraham. Instead, it reflects broader regional admixture common throughout the Mediterranean and Near East, including populations that entered Palestine after the original Israelite period. In my view, this further weakens, rather than supports, claims of direct Israelite ancestry.
As you can imagine, this theory has profound implications for modern political claims. If Ashkenazi Jews are primarily of European and Anatolian origin, then arguments grounding territorial entitlement in ancient Israelite ancestry collapse. The appeal to Abrahamic inheritance becomes symbolic rather than biological, and modern land claims based on genetic continuity lose their purpose.
OTHER THEORIES ALSO EXIST
The Khazar Conversion Theory
This theory holds that a significant portion of Ashkenazi Jews descend from the Khazar Khaganate, a Turkic empire that dominated the Caucasus and steppe regions roughly between the seventh and tenth centuries.
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