2 Chronicles 32:1-3

1 After all that Hezekiah had so faithfully done, Sennacherib king of Assyria came and invaded Judah. He laid siege to the fortified cities, thinking to conquer them for himself.

2 When Hezekiah saw that Sennacherib had come and that he intended to make war on Jerusalem,

3 he consulted with his officials and military staff about blocking off the water from the springs outside the city, and they helped him.