Tim Keller points out that the Bible depicts “the extremely close connection between deed-ministry and word-ministry. The practical actions of Christians for people in need demonstrate the truth and power of the gospel. Acts of mercy and justice are visible to non-believers and can lead men to glorify God (Matt. 5:13–16).”
Morgan, C. W. (2010). A Theology of James: Wisdom for God’s People. (R. A. Peterson, Ed.) (p. xiii). Phillipsburg, NJ: P&R Publishing.