II Kings 5:13-15

And his servants came near and spoke to him, and said, “My father, if the prophet had told you to do something great, would you not have done it? How much more then, when he says to you, ‘Wash, and be clean’?” So he went down and dipped seven times in the Jordan, according to the saying of the man of God; and his flesh was restored like the flesh of a little child, and he was clean. And he returned to the man of God, he and all his aides, and came and stood before him; and he said, “Indeed, now I know that there is no God in all the earth, except in Israel; now therefore, please take a gift from your servant.”