2 Kings 20:20
20 And the rest of the acts of Hezeki'ah, and all his might, and how he made a pool, and a conduit, and brought water into the city, are they not written in the book of the Chronicles of the kings of Judah?
2 Chronicles 32:2-4, 32:30
2 And when Hezeki'ah saw that Sennach'erib was come, and that he was purposed to fight against Jerusalem,
3 he took counsel with his princes and his mighty men to stop the waters of the fountains which were without the city: and they did help him.
4 So there was gathered much people together, who stopped all the fountains, and the brook that ran through the midst of the land, saying, Why should the kings of Assyria come, and find much water?
30 This same Hezeki'ah also stopped the upper watercourse of Gihon, and brought it straight down to the west side of the city of David. And Hezeki'ah prospered in all his works.