Tel Lachish, the mound of the ancient city of Lachish, is located in the lowlands of the Judean Hills, some 40 km. southeast of Jerusalem. The abundance of water sources and the fertile valleys of the area favored the existence of a prosperous city over a considerable period of time.

The mound of the city was first excavated during the 1930s. Systematic and in-depth excavations of large areas of the mound were again conducted between 1973 and 1987.

The Canaanite city

A large, fortified Canaanite city was established at the beginning of the 2nd millennium BCE on a hillock dominating the surrounding area. It was fortified by a wall and a glacis, a ramp-like structure of compressed earth with a hard, smooth surface of lime plaster. The fortification was completed by a fosse (moat) at the foot of the glacis.

A large palace of numerous rooms and a courtyard, probably the residence of the Canaanite King of Lachish, stood on the acropolis - the highest part of the city. It could not be completely exposed, as a later Israelite palace was built above it.

From letters sent by the kings of Lachish to their overlords, the pharaohs of Egypt (the 14th century BCE el-Amarna correspondence) it may be deducted that Lachish was an important urban center and the seat of the Egyptian governor of southern Canaan.

Two temples are known from this period at Lachish. Finds from the Fosse Temple, at the western foot of the mound, include cult vessels, offering bowls and imported items of pottery, faience and ivory, all evidence of wealth. The temple on the acropolis, with Egyptian architectural elements, included an entrance chamber, a main hall (16 x 13 m.) and a raised holy of holies. Two octagonal stone columns supported the wooden ceiling, while the walls were decorated with painted plaster.

Canaanite Lachish was totally destroyed by fire at the end of the 12th century BCE. According to one theory, the destruction was wrought by the Philistines of the nearby Coastal Plain; according to another, more widely accepted theory, it was wrought by the Israelites, whose capture and destruction of the city is recorded in the Bible. (Joshua 10:31,32)

The Israelite city

Rebuilt as a fortress-city of the Kingdom of Judah, Lachish gained in importance after the split of the kingdom into Judah and Israel. As the largest city on the western border of the Kingdom of Judah facing the Philistines of the Coastal Plain, Lachish was fortified with a double line of massive mud-brick walls on stone foundations. The main city wall on top of the mound was 6 m. wide, with a sloping glacis supported by a revetment wall along the middle of the slope. The city gate, in the southwestern wall, is one of the largest and most strongly fortified gates known of this period. It consists of an outer gate in a huge tower built of large stones which protrudes from the line of defenses. The gatehouse, on top of the mound, consists of three pairs of chambers with wooden doors on hinges.

A palace-fortress was built on the acropolis and probably served as the residence of the governor appointed by the King of Judah. During the 8th century BCE a new wing was added to the palace, enlarging it to 76 x 36 m. Next to the palace was a courtyard with stables and storerooms; the whole complex was surrounded by a wall with a gatehouse.

The city of Lachish was destroyed by the Assyrian army during Sennacherib’s campaign against the Kingdom of Judah in 701 BCE. The destruction was total; the buildings were burned to the ground and the inhabitants exiled. The Assyrian campaign, during the reign of King Hezekiah, and the encampment of the Assyrian army at Lachish are described in detail in the Bible. (2 Kings 18:14-17; 2 Chronicles 32:9) The conquest of Lachish is depicted in monumental stone reliefs found at Sennacherib’s palace at Ninveh, providing a rare contemporary "photograph" of the battle and conquest. These relief-images of the Assyrian attack have been confirmed by archeological evidence at the site: the attack on Lachish was launched from the southwest; the attackers built a siege ramp against the slope of the mound, which according to calculation contained some 15,000 tons of stones and earth! The ramp was covered with plaster to allow the Assyrian battering ram to be moved up to the city wall and breach it. The city’s defenders constructed a counter-ramp inside the city, thus raising the city wall, which forced the Assyrians to raise the height of their ramp in order to overcome the city’s new defenses. The fierceness of the battle is attested to by the remains of weapons, scales of armor, hundreds of slingstones and arrowheads.

During the reign of King Josiah (639-609 BCE), the city of Lachish was rebuilt and fortified. This much poorer city was captured and destroyed by the Babylonian army in 587/6 BCE. (Jeremiah 34:7) In one of the rooms, which opened onto a courtyard outside the city gatehouse, a group of ostraca were found during the excavations in the 1930s. Now known as the Lachish Letters, they constitute an important corpus of Hebrew documents from the First Temple period. Written in paleo-Hebrew script on pottery sherds, they are messages sent by the garrison commander of a small fortress to his commanding officer in Lachish.