30 And this same Hezekiah blocked off the flow of the waters of the upper Gihon, and directed them down the west side of the city of David. And Hezekiah prospered in all his works. 31 And thus in the matter of the envoys of the commanders of Babylon who had been sent to him to seek the sign that had happened in the land, God forsook him, to test him and to know all that was in his heart.