Signs as a language
In Babylonian thought, the gods communicated through events that could be read. A lunar eclipse, an unusual birth, a dream, the shape of a sheep’s liver or an odd happening in a city might all be signs. The scholar’s task was to read them and, if the message was bad, to take steps to avert the harm. This was not “prophecy” in the sense of a messenger speaking for a god. It was a technical discipline, close to a science of interpretation, and the court took it very seriously.
The signs were arranged in long compilations that followed a standard form: “if X happens, then Y will follow.” Many entries concern the king and the land, so omens and politics were never far apart.
The omen series
Several great series organised this knowledge:
- Enuma Anu Enlil covered celestial and weather omens, with roughly seventy tablets drawing connections between the Moon, Sun, planets and events on earth.
- Shumma izbu dealt with abnormal births of animals and humans.
- Shumma alu treated omens from cities, houses and everyday life.
- Liver divination, or extispicy, was carried out by a specialist called the baru, who posed a question to a god and examined the entrails of a sacrificed sheep for the answer.
Experts did the work of reading them. Alongside the baru were the astrologers and the exorcists who performed rituals to avert bad signs, a role related to the Mesopotamian healers who treated illness. These experts were learned men trained in cuneiform writing and long scholarly traditions, and they often came from families who passed their craft down generations. Liver divination also appears in Etruscan haruspicy in Italy, and scholars debate whether the similarity reflects contact with the Near East.
Advisers to kings
The clearest evidence for how this worked comes from Assyria, where the letters of royal scholars to kings Esarhaddon and Ashurbanipal survive in large numbers. Scholars, many of them from Babylonian cities, report celestial events and give advice. Their letters show a mix of observation and anxiety: they warn of dangers, recommend rituals and sometimes compete with each other for influence.
A well-known ritual was the substitute king. When an omen, such as an eclipse, seemed to threaten the king’s life, a stand-in could be enthroned briefly to absorb the evil, and then removed. The best documentation for this comes from Assyria, and we should not assume Babylonian kings used it in exactly the same way. Even so, Babylonian scholars lived inside the same tradition and many wrote for Assyrian courts.
In the Neo-Babylonian period, sources are thinner, but there are signs that kings used divination too. The biblical book of Ezekiel describes the king of Babylon standing at a fork in the road, shaking arrows, consulting household gods and examining a liver, an outsider’s picture that fits the known techniques. Babylonian kings also sought favourable omens before building projects and campaigns. Rulers could use favourable readings as support, but the scholars’ reports also let them delay or reconsider action without losing face.
Prophecy-style texts
Babylonia also produced a set of Akkadian texts that scholars call literary predictive texts or “prophecies”. Examples include the Marduk Prophecy, the Shulgi Prophecy, the Uruk Prophecy and the Dynastic Prophecy. They are written as if a god or past figure predicted the rise and fall of kings and cities. In fact, most describe events in the past in the future tense, and they are generally thought to have been composed after the events they describe. The Dynastic Prophecy was probably written in the Hellenistic period, long after the Neo-Babylonian empire.
Their purpose is debated. Some may have served to legitimise a ruler or explain why a god, such as Marduk, had allowed disaster, only to return and restore the city. These texts show how political change could be presented as divine plan.
A different tradition belongs to Assyria: collections of oracles delivered by prophets of Ishtar of Arbela to King Esarhaddon and others, which offered reassurance to the throne. Assyrian practice was closer to what we think of as prophecy in the biblical sense, and it is better documented than any Babylonian counterpart.
The exile of the Judeans
The politics of Babylon touched the Hebrew prophets directly. After Nebuchadnezzar II besieged Jerusalem in 597 BCE, he took King Jehoiachin and part of the elite to Babylonia. A further capture of the city in 586 BCE (some scholars prefer 587) brought more deportations, and the Temple was destroyed. Biblical sources give differing numbers for the exiles, so exact figures cannot be fixed, and they were a fraction of the population of Judah.
Babylonian records mention these people. Tablets from the royal palace in Babylon list oil and barley rations for “Yaukin, king of Yahud” and his sons, matching the biblical Jehoiachin. Later tablets from a place called Al-Yahudu (“Judah-town”) show Judeans farming, paying taxes and making contracts in the Babylonian countryside in the 6th and 5th centuries BCE. Some exiles were settled in rural areas of Babylonia, and the book of Ezekiel places the prophet by the Chebar canal, usually located near Nippur.
For the exiles, the Babylonian omens and Babylonian rule were the setting for new religious reflection. Prophets such as Ezekiel and the writer of the later chapters of Isaiah spoke from or about the exile, and a major part of the Hebrew Bible took shape during or soon after this period. After Cyrus the Great conquered Babylon in 539 BCE, some Judeans returned to Jerusalem, while many chose to stay, forming a community that lasted in Mesopotamia for centuries.
Why it matters
Reading signs shaped decisions about wars, building and succession in a world where there was no separate word for “politics” and “religion”. The entanglement of oracle and politics is not unique to Babylonia, and Greek oracle sites such as Delphi worked by different methods but served similar needs. The omen tradition also produced, almost by accident, the records and mathematics that became Babylonian astronomy, and it passed into Greek and later astrological thought.