Do not withhold good from those to whom it is due, when it is in your power to act. Do not say to your neighbor, “Come back tomorrow and I’ll give it to you”— when you already have it with you. Proverbs 3: 27-28
It's between God and you whom you should help with your time, talent, and resources. You know when a scam is coming your way, and you know when you should take action and help someone in need.
Be wise. Walk away when you see a trouble-maker who scams and games.
Be aware. Stop pretending not to see your neighbor when God is nudging you to help.