2 Kings 5:14-15

14Then went he down, and dipped himself seven times in the Jordan, according to the saying of the man of God; and his flesh came again like unto the flesh of a little child, and he was clean.

15And he returned to the man of God, he and all his company, and came, and stood before him; and he said, Behold now, I know that there is no God in all the earth, but in Israel: now therefore, I pray thee, take a present of thy servant.