Researchers say the ancient moat reshapes what we know about Jerusalem’s defenses during the First Temple period.

A massive stone-cut feature hidden beneath Jerusalem’s City of David is reshaping how archaeologists understand the ancient city’s defenses. Long debated in scholarly circles, the structure matches descriptions of a deep moat referenced in biblical texts and dates to around 3,000 years ago, during the First Temple period.
New excavations and careful reanalysis suggest this wasn’t a minor trench, but a major engineered barrier designed to protect the city’s core. The finding helps clarify how Jerusalem was fortified — and how its leaders used landscape and construction to control movement, access, and security.








