2 Chronicles 32:29-31

29 He also built many towns. He had many flocks of sheep and herds of cattle. God gave Hezekiah much wealth.

30 It was Hezekiah who cut off the upper pool of the Gihon spring. He made those waters flow straight down on the west side of the older part of Jerusalem. And Hezekiah was successful in everything he did.

31 But one time the leaders of Babylon sent messengers to Hezekiah. They asked him about a strange sign that had happened in the land. When they came, God left Hezekiah alone to test him. He wanted to know everything that was in Hezekiah’s heart.