2 Kings 20:20

2 KINGS—NOTE ON 2 Kings 20:20 the pool and the conduit. The Gihon Spring in the Kidron Valley was Jerusalem’s water source. A quarter-mile-long conduit brought water from there to a reservoir at the southern end of the city of David. Since this water supply lay outside the city’s walls, it could be cut off in time of siege. A tunnel leading from the conduit allowed residents to access its water from inside the city walls. In preparation for the Assyrian attack, Hezekiah had an additional tunnel cut that diverted water from the Gihon Spring directly underground to the Pool of Siloam, within the city walls. On the Chronicles of the Kings, see note on 1 Kings 14:19.