John Gill Commentary 2 Kings 2:20

"And he said, Bring me a new cruse, and put salt therein. And they brought it to him." — 2 Kings 2:20 (ASV)

And he said, bring me a new cruse, and put salt therein
One that had never been used, that it might not be thought that the virtue was owing to anything that had been, or was, put into it:

and they brought it to him ;
the pot with the salt in it.