“The gospel of grace will turn anyone who truly believes it into a person who does justice for those in need. Doing justice includes not only the righting of wrongs, but also generosity and social concern, and a willingness to live a more modest lifestyle in order to be generous to the church and to the poor. This kind of life reflects the character of God.”
Tim Keller of Redeemer Presbyterian Church in the Redeemer Report dated November 2010, 2.