2 Chronicles 32:30-31

30Hezekiah had stopped the water coming out from the higher spring at Gihon. Instead, he caused the water to go down to the west side of the City of David. Hezekiah was successful in all the things that he did.

31After that, the rulers of Babylon sent some officers to visit Hezekiah. They wanted to ask him about the miracle that had happened in Judah. God let Hezekiah decide what to tell them. He wanted to test Hezekiah, to see if he would be faithful.