Charity is not showing off. It means that you should help the people in need from the bottom of your heart. If your servant is in serious need of money or any other material goods, help him first; because there are many people who will come forward and help a charitable organization but the only source of income for your servant is you. Your servant cannot think of any source of income other than you because that individual works for you 24*7. Charity is definitely not your cup of tea if you are only interested in showing- off. Helping others is the biggest charity.