2 Kings 5:10

5:10 Elisha sent out a messenger who told him, “Go and wash seven times in the Jordan; your skin will be restored and you will be healed.”

2 Kings 5:12

5:12 The rivers of Damascus, the Abana and Pharpar, are better than any of the waters of Israel! Could I not wash in them and be healed?” So he turned around and went away angry.