Hezekiah’s Tunnel, cut 558 m. (1831 ft.) through the bedrock of the ridge to convey water from Gihon Spring on the city’s east side to the Siloam Pool on the southwest (2 Kgs. 18:13–18; 20:20). During the reign of Solomon the city was expanded to the north, as the Temple Mount was added. During the 8th century, probably the reign of Hezekiah, the city expanded to the western hill. Bibliography. D. Tarler and J. M. Cahill, “David, City of,” NEAEHL 2:52–67. LAMOINE F. DEVRIES “Day” (Heb. yôm;