The poor - a Christian perspective
In this passage a woman breaks a bottle of perfume over Jesus' head and the disciples are outraged because the perfume was worth a great deal of money. If they had sold it they could have helped many poor people. Jesus replied that they would always have the poor but they weren't always going to have him around.
http://biblegateway.com/passage/?search=John%2012:7-8&version=NIV