"If a man shuts his ears to the cry of the poor,
he too will cry out and not be answered" (Proverbs 21:13, NIV).
The Christian Standard has several good articles about how Christians are responding to poverty, hunger, and HIV/AIDS in the current issue. The best of the articles is titled "Toilets and Christianity." It may be found at http://christianstandard.com/articledisplay.asp?id=672.