2 Kings 2:20-22

And he said, Bring me a new cruse, and put salt therein. And they brought it to him. And he went forth unto the spring of the waters, and cast salt therein, and said, Thus saith Jehovah, I have healed these waters; there shall not be from thence any more death or miscarrying. So the waters were healed unto this day, according to the word of Elisha which he spake.