2 Kings 2:15-22

Now when the sons of the prophets who were at Jericho opposite him saw him, they said, “The spirit of Elijah rests on Elisha.” And they came to meet him and bowed themselves to the ground before him. They said to him, “Behold now, there are with your servants fifty strong men, please let them go and search for your master; perhaps the Spirit of the LORD has taken him up and cast him on some mountain or into some valley.” And he said, “You shall not send.” But when they urged him until he was ashamed, he said, “Send.” They sent therefore fifty men; and they searched three days but did not find him. They returned to him while he was staying at Jericho; and he said to them, “Did I not say to you, ‘Do not go’?” Then the men of the city said to Elisha, “Behold now, the situation of this city is pleasant, as my lord sees; but the water is bad and the land is unfruitful.” He said, “Bring me a new jar, and put salt in it.” So they brought it to him. He went out to the spring of water and threw salt in it and said, “Thus says the LORD, ‘I have purified these waters; there shall not be from there death or unfruitfulness any longer.’ ” So the waters have been purified to this day, according to the word of Elisha which he spoke.