This same Hezekiah also stopped the water outlet of Upper Gihon, and brought the water by tunnel to the west side of the City of David. Hezekiah prospered in all his works.
2 Chronicles 32:30
Surrounding context
32:29 Moreover he provided cities for himself, and possessions of flocks and herds in abundance; for God had given him very much property.
32:30 This same Hezekiah also stopped the water outlet of Upper Gihon, and brought the water by tunnel to the west side of the City of David. Hezekiah prospered in all his works.
32:31 However, regarding the ambassadors of the princes of Babylon, whom they sent to him to inquire about the wonder that was done in the land, God withdrew from him, in order to test him, that He might know all that was in his heart.