Jeremiah lived through the destruction his book announces, and it survives in two substantially different ancient editions. Both facts make it unusually rewarding to check.
What the book is
Fifty-two chapters covering roughly forty years, from a call dated to the thirteenth year of Josiah through the fall of Jerusalem in 586 BCE and into the aftermath in Egypt. It is the longest book in the Bible by word count in Hebrew, and it is a mixture of poetic oracle, third-person narrative about the prophet, and prose sermon.
What distinguishes it from the other prophetic books is how much of it is biography. Jeremiah is imprisoned, thrown into a cistern, consulted secretly by a king who then ignores him, and finally carried off to Egypt against his will. The book names his scribe, Baruch son of Neriah, and describes the physical production of a scroll — dictated, read aloud, cut up and burned by the king, and dictated again with additions. Few ancient texts describe their own making in that much detail.
Two editions
The Hebrew text preserved in the Masoretic tradition and the Greek text of the Septuagint are not two translations of the same book. The Greek is roughly one-eighth shorter and arranges the oracles against the nations in a different place and a different internal order.
Before the Dead Sea Scrolls, the shorter Greek text could be explained as a translator abridging. Hebrew fragments of Jeremiah found at Qumran include copies that agree with the shorter, differently ordered form. That changed the picture: the Greek translator was working from a Hebrew text of that shape, and two editions of the book were in circulation in Hebrew.
This is the clearest evidence anywhere in the Hebrew Bible that a biblical book existed in more than one authoritative form, and readers meeting it for the first time often find it more unsettling than any question about prophecy. It is also, straightforwardly, what the manuscripts show.
Where the external record touches it
Jeremiah is unusually rich here, because it names minor officials, and minor officials leave administrative traces.
Clay bullae — the hardened seal impressions that once closed documents — have been excavated in Jerusalem bearing names and patronymics matching officials named in the book. Because these come from controlled excavation, their find-spot and stratum are recorded, which is what makes them usable evidence. A great many similar objects circulate on the antiquities market without provenance, and this site does not treat unprovenanced inscriptions as attestation of anything, however often they are cited.
A cuneiform tablet in the British Museum, part of a Babylonian administrative archive, records a payment by an official whose name and title correspond to one of the Babylonian officers listed at Jeremiah 39:3. The identification was published in 2007 and rests on reading a name that had previously been mangled in transmission. It is a good example of how the record grows: the tablet had been in the museum for over a century before anyone connected it to the verse.
The larger events are documented independently. Babylonian chronicle tablets date Nebuchadnezzar’s capture of Jerusalem and the deportation of its king with a precision the biblical text does not attempt. Ration lists from Babylon record provisions issued to Jehoiachin, king of Judah, and his sons — the same king whose release from prison closes 2 Kings and Jeremiah 52.
And from the Judaean side, ostraca — letters written in ink on potsherds — were found in the ruins of Lachish, burnt in the same Babylonian campaign. They are military correspondence from the final weeks, written by people who did not know how it would end. They mention a prophet, though not by name.
The dating question
Unusually, the general period is not in dispute. Nobody argues that Jeremiah is a Hellenistic composition. The questions are internal: how much of the poetry goes back to the prophet, how much of the prose sermon material reflects a later editorial hand with a distinct theological vocabulary, and how the two editions relate to each other in time. Those are questions about layers within a sixth-century book, not about whether the book is sixth-century.
Where to start
Chapter 36 — the making and burning of the scroll — is the best single entry point in the book, because it is about how the book came to exist. Then chapter 39 for the fall itself, and chapter 52, which repeats the account in a different key and closes with the ration issued to Jehoiachin.
The reading plan The Exile in Order sets these chapters in sequence alongside the other books that cover the same decades.