St. Leo the Great: Be steadfast, Christian giver...

Be steadfast, Christian giver: give what you may receive, sow what you may reap, scatter what you may gather. Fear not to spend, sigh not over the doubtfulness of the gain. Your substance grows when it is wisely dispensed. Set your heart on the profits due to mercy, and traffic in eternal gains. Your Recompenser wishes you to be munificent, and He who gives that you may have, commands you to spend, saying, "Give, and it shall be given to you." You must thankfully embrace the conditions of this promise. For although you have nothing that you did not receive, yet you cannot fail to have what you give.'

St. Leo the Great