Lachish Letters

Written during the final Babylonian siege of Judah, the Lachish Letters provide a firsthand military record corroborating Jeremiah's account of the fall of Jerusalem.

The Lachish Letters are a group of 21 pottery sherds, called ostraca, inscribed with ink text in classical Biblical Hebrew. They were discovered during excavations at Tel Lachish in 1935 and 1938, led by British archaeologist James Leslie Starkey. The majority came from a room just inside the city gate, a space that appears to have been used by the military garrison as a guardroom or administrative post.

The sherds are pieces of broken pottery, typically from large storage jars or bowls. When pottery broke in the ancient world, the flat curved fragments were often reused as writing surfaces. Scribes and soldiers wrote on them with a reed pen dipped in carbon-based ink. The ink on ostraca often survives for thousands of years in dry conditions, and the Lachish ostraca are exceptionally well preserved given their age.

Starkey's team found 18 ostraca in 1935, buried under rubble in the guardroom. Three more were found during the 1938 season. Together they make up the largest collection of pre-exilic Hebrew writing found at a single site. The date of the letters is established by two lines of evidence: the style of the Hebrew script, which matches the late 7th to early 6th century BCE, and the destruction layer in which they were found, which dates to the Babylonian siege of around 586 BCE. The letters were apparently in use right up to the moment the city was destroyed and the building collapsed around them.

Most of the letters are addressed to a man named Yaosh, who appears to be the commander of the Lachish garrison. The letters are sent by a subordinate officer named Hoshaiah, who is stationed at a forward post. Hoshaiah writes to keep Yaosh informed of events in the field, to explain his actions, and at one point to defend himself against accusations.

The letters are written in a formal, courtly Hebrew very similar to the prose style of the book of Jeremiah. This similarity has made them invaluable to linguists studying Biblical Hebrew at the end of the monarchy period. The vocabulary, grammar, and idioms in the letters match those used in the prophetic literature of the same era, confirming that the biblical text preserves authentic linguistic features of late pre-exilic Judah.

Several letters include religious formulas invoking YHWH at the beginning and end, a common feature of ancient Near Eastern correspondence. Phrases like 'May YHWH cause my lord to hear tidings of peace' appear in multiple letters, reflecting the standard greeting conventions of the period.

Letter IV is the most famous of the group. In it, Hoshaiah responds to a message from Yaosh and mentions that the signal fires of Azekah can no longer be seen. The specific wording, 'we are watching for the fire signals of Lachish according to all the signs my lord has given, for we cannot see Azekah,' is strikingly similar to the language in Jeremiah 34:7, which states that Lachish and Azekah were the only fortified cities of Judah still standing. The implication of Hoshaiah's letter is clear: Azekah has fallen, and Lachish is now exposed.

Letter III mentions that 'a prophet' has been sending letters to a military commander and that the prince has taken these letters to Jerusalem. Some scholars have suggested this prophet might be Jeremiah, whose activities at exactly this time are described in the book of Jeremiah. Letter VI uses the phrase 'weakening the hands' to describe someone whose messages were discouraging the army, the exact same phrase used in Jeremiah 38:4 when the princes accuse Jeremiah of weakening the hands of the soldiers by prophesying Jerusalem's fall.

After Starkey's discovery, the ostraca were divided. Most went to the British Museum in London, where they remain in the Near Eastern collections. Several are in the Rockefeller Museum in Jerusalem. Detailed editions and photographs have been published allowing scholars around the world to study the texts.

The letters are written on both sides of some sherds and on one side of others. The ink has faded unevenly, and some passages remain difficult to read even under modern imaging techniques including infrared photography. Scholars continue to debate the reading of several letters.

• Twenty-one pottery sherds inscribed in classical Biblical Hebrew were found in the Lachish gate guardroom, dating to approximately 588 to 586 BCE
• The letters are dispatches between a field officer named Hoshaiah and the Lachish garrison commander Yaosh, documenting military communications during the final Babylonian siege of Judah
• Letter IV states that the signal fires of Azekah can no longer be seen, implying that Azekah had fallen and Lachish was the last major fortified city before Jerusalem
• Letter VI uses the phrase 'weakening the hands,' the identical expression used in Jeremiah 38:4 when Jeremiah is accused of discouraging the army
• Letter III refers to a prophet sending letters to a military officer, which some scholars connect to the activities of Jeremiah described in the book of Jeremiah
• The linguistic style of the letters closely matches the Hebrew prose of the book of Jeremiah, providing strong evidence that biblical texts preserve authentic language from this period
• The ostraca represent the largest single collection of pre-exilic Hebrew writing found at one site, and were left in place by the destruction of the city around them

The Lachish Letters and the book of Jeremiah describe the same historical moment from two different vantage points. Jeremiah 34:7 states that 'the army of the king of Babylon was fighting against Jerusalem and against all the cities of Judah that were left, Lachish and Azekah, for these were the only fortified cities of Judah that remained.' Letter IV from the Lachish ostraca describes exactly this situation: Azekah's fires have gone dark, and only Lachish remains between the Babylonian army and Jerusalem. The two texts corroborate each other with unusual precision. The verbal parallel in Letter VI is even more striking. Jeremiah 38:4 records the princes of Jerusalem saying to King Zedekiah that Jeremiah 'is weakening the hands of the soldiers who are left in this city.' Letter VI from Lachish accuses someone of 'weakening the hands of the land.' The phrase 'weaken the hands' appears to be a specific idiomatic expression used in military contexts to mean discouraging or demoralizing troops. Its presence in both texts suggests either that a prophet like Jeremiah was known even to soldiers at Lachish, or that the same language was commonly used to describe unwelcome prophetic speech in military situations. The letters also reflect the atmosphere of 2 Chronicles 32:9, which describes messages being sent between military commanders during a siege. The combination of the Lachish Letters and the biblical text gives the clearest picture available of what communication and command looked like in Judah's final military crisis.