2 Kings 2:18-22

   18: And when they came again to him, (for he tarried at Jericho,) he said unto them, Did I not say unto you, Go not?
   19: And the men of the city said unto Elisha, Behold, I pray thee, the situation of this city is pleasant, as my lord seeth: but the water is naught, and the ground barren.
   20: And he said, Bring me a new cruse, and put salt therein. And they brought it to him.
   21: And he went forth unto the spring of the waters, and cast the salt in there, and said, Thus saith the LORD, I have healed these waters; there shall not be from thence any more death or barren land.
   22: So the waters were healed unto this day, according to the saying of Elisha which he spake.