'Cistern' in the Bible

Then Jehu said, “Take them alive.” So they took them alive and [later] slaughtered them at the well by the place of the sand heaps, forty-two men; he left none of them [alive].

Do not listen to Hezekiah, for thus says the king of Assyria: “Surrender to me and come out to [meet] me, and every man may eat from his own vine and fig tree, and every man may drink the waters of his own well,