2 Chronicles 32:2-4

2 When Hizkiyahu saw that Sancheriv had come and intended to attack Yerushalayim,

3 he consulted his leading men and military advisers about sealing off the water in the springs outside the city. After gaining their support,

4 a large crowd was gathered to block all the springs and the stream flowing through the countryside. They reasoned, “Why should the kings of Ashur come and find an ample supply of water?”