2 Kings 5:11-13

11But Naaman was angered and walked away, saying, “I thought he would surely come out to me, stand and call on the Name of Adonai his God, and wave his hand over the spot and cure the tza'arat.

12Aren’t Amanah and Pharpar, the rivers of Damascus, better than all the waters of Israel? Couldn’t I wash in them and be clean?” So he turned and went away in a rage.

13But his servants approached him and spoke to him, and said, “My father, if the prophet had told you to do something difficult, would you not have done it? How much more then, when he told you only to ‘Wash and be clean’?”