2 Chronicles 32:4, 30, 32

So many people assembled and stopped up all the springs and the stream which flowed through the region, saying, “Why should the kings of Assyria come and find abundant water?”

It was Hezekiah who stopped the upper outlet of the waters of Gihon and directed them to the west side of the city of David. And Hezekiah prospered in all that he did.

Now the rest of the acts of Hezekiah and his deeds of devotion, behold, they are written in the vision of Isaiah the prophet, the son of Amoz, in the Book of the Kings of Judah and Israel.