2 Kings 5:15-16

15Then Naaman and all his servants went back to see Elisha, the man of God. Naaman stood in front of him and he said, ‘Now I know that there is no God in the whole world except the one in Israel. Please accept a gift from me, your servant.’

16But Elisha replied, ‘I serve the Lord. I promise you, as surely as he lives, I will not accept a gift from you.’ Naaman asked him many times to accept a gift but Elisha refused.