“Now the people of the city said to Elisha. ‘The location of this city is pleasant, as my lord sees. However, the water is bad and the land is unfruitful.’ He said. ‘Bring me a new bowl. Put salt in it.’ So they brought it to him. Then he went to the spring of water and threw salt into it. He said. ‘Thus says Yahweh. I have made this water wholesome. From now on neither death nor miscarriage shall come from it.’ So the water has been wholesome to this day, according to the word which Elisha spoke.”
Elisha was in some unnamed city. However, it might be Jericho since there is a spring there called Elisha’s Fountain. This was a pleasant land but not fruitful because the water was bad. Elisha decided to put salt into it so that the water became wholesome. Thus no one would suffer death or a miscarriage from this spring. The water was good during even up to the time of this biblical writing.