2 Kings 5:13-15

Young's Literal Translation

¹³ And his servants come nigh, and speak unto him, and say, `My father, a great thing had the prophet spoken unto thee -- dost thou not do [it]? and surely, when he hath said unto thee, Wash, and be clean.'

¹⁴ And he goeth down and dippeth in Jordan seven times, according to the word of the man of God, and his flesh doth turn back as the flesh of a little youth, and is clean.

¹⁵ And he turneth back unto the man of God, he and all his camp, and cometh in, and standeth before him, and saith, `Lo, I pray thee, I have known that there is not a God in all the earth except in Israel; and now, take, I pray thee, a blessing from thy servant.'