2 Kings 5:14-15

14So 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.

15And 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.”