Divrey Hayamim Bais 32:1-3

Orthodox Jewish Bible

32 After these things, and haemes thereof, Sancheriv (Sennacherib) Melech Assyria came, and invaded Yehudah, and laid siege against the fortified cities, and thought to conquer them for himself.

² And when Chizkiyahu saw that Sancheriv was come, and that he was purposed to make milchamah against Yerushalayim,

³ He took counsel with his sarim and his gibborim to cover over the waters of the springs [Spring of Gihon] which were outside the Ir; and they did support him.