2 Chronicles 32:29-31

29 Moreover he provided him cities, and possessions of flocks and herds in abundance; for God had given him very much substance.

30 This same Hezekiah also stopped the upper spring of the waters of Gihon, and brought them straight down on the west side of the city of David. Hezekiah prospered in all his works.

31 However concerning the ambassadors of the princes of Babylon, who sent to him to inquire of the wonder that was done in the land, God left him, to try him, that he might know all that was in his heart.