2 Kings 2:20-22

2:20 Elisha said, “Get me a new jar and put some salt in it.” So they got it. 2:21 He went out to the spring and threw the salt in. Then he said, “This is what the Lord says, ‘I have purified this water. It will no longer cause death or fail to produce crops.” 2:22 The water has been pure to this very day, just as Elisha prophesied.

2 Kings 4:41

4:41 He said, “Get some flour.” Then he threw it into the pot and said, “Now pour some out for the men so they may eat.” There was no longer anything harmful in the pot.

Isaiah 38:21

38:21 Isaiah ordered, “Let them take a fig cake and apply it to the ulcerated sore and he will get well.”