Do not withhold good from those to whom it is due, when it is in your power to act.
This is sound advice no matter what your particular religious beliefs might be. In a more simplistic perspective, we should do what's right to help people when we are able. There might be some debate about there always being people in need and how our resources won't stretch that far. I don't know that it always has to be about money either though. I think it's counsel encouraging us to look for ways to do good and how not to withhold it when we are able to make a difference in a life.
What is within your power to do? What do you have that will help others? Perhaps it is an encouraging word for a family member when they need their spirits lifted. It might be a home cooked meal for someone who is sick or asking a neighbor's family over for dinner. Sometimes it's as simple as a smile and a good tip for a stressed restaurant employee. Our engaged presence can be the good thing our family needs instead of being preoccupied with our work and hobbies.
We've all got good things we can offer to people in need around us--some of whom are in close proximity on a daily basis. Why don't we offer what we have to them? We would certainly want the same thing done for us.