2 Kings 5:13-14

13But Naaman's servants went to him. One of them said, ‘My master, the prophet might have asked you to do something very difficult. Then you surely would have done it! Now he says to you, “Wash yourself! Then you will be clean.” That is much easier for you to do.’

14So Naaman went down to the Jordan River. He washed himself in it seven times, as the man of God had told him to do. Naaman's skin became well again. It became as clean as a young child's skin.