2 Kings 5:10-14 ESV
And Elisha sent a messenger to him, saying, “Go and wash in the Jordan seven times, and your flesh shall be restored, and you shall be clean.” But Naaman was angry and went away, saying, “Behold, I thought that he would surely come out to me and stand and call upon the name of the LORD his God, and wave his hand over the place and cure the leper. Are not Abana and Pharpar, the rivers of Damascus, better than all the waters of Israel? Could I not wash in them and be clean?” So he turned and went away in a rage. But his servants came near and said to him, “My father, it is a great word the prophet has spoken to you; will you not do it? Has he actually said to you, ‘Wash, and be clean’?” So he went down and dipped himself seven times in the Jordan, according to the word of the man of God, and his flesh was restored like the flesh of a little child, and he was clean.
ESV: English Standard Version 2016