'Be Clean' in the Bible

Are not, Abanah and Pharpar, rivers of Damascus, better than all the waters of Israel? may I not bathe, in them, and be clean? So he turned, and went away in a rage.

Then drew near his servants, and spake unto him, and said - My father! if, some great thing, the prophet had commanded thee, wouldst thou not have done it? then, how much rather, when he hath said unto thee, Bathe and be clean?