2 Chronicles 32:1-3

1 After these deeds of faithfulness, Sennacherib king of Assyria came and entered Judah; he encamped against the fortified cities, thinking to win them over to himself.

2 And when Hezekiah saw that Sennacherib had come, and that his purpose was to make war against Jerusalem,

3 he consulted with his leaders and commanders to stop the water from the springs which [were] outside the city; and they helped him.