Perhaps a poverty stricken person will be blessed and changed as a result of some kindness I show him. If so, God be praised for His grace through me. But if the person walks away unchanged by my kindness, then I still rejoice over the opportunity to love as God loves. Perhaps the person will repent in time; but for now, my heart is chastened and made wiser by the tangible depiction of what I myself have done to God on numerous occasions.
The gospel reminds me daily of the spiritual poverty into which I was born and also of the staggering generosity of Christ towards me. Such reminders instill in me both a felt connection to the poor and a desire to show them the same generosity that have been lavished on me. When ministering to the poor with these motivations, I not only preach the gospel to them through word and deed, but I reenact the gospel to my own benefit as well."
(A Gospel Primer for Christians, by Milton Vincent. Pages 38-39.)