Books on Biblical Justice:
Here are books written by three pastors who have studied the biblical concept of justice (theologically) and have done a great job of connecting the biblical ethic that God demands of His People to a modern context.
"Generous Justice: How God's Grace Makes Us Just" by Timothy Keller (2010)
(Keller surveys a biblical view of doing "justice")
(Corbett provides a biblically based framework concerning the root causes of poverty and its alleviation while giving pragmatic and healthy solutions)
"Radical: Taking Back Your Faith from the American Dream" by David Platt (2010)
(Platt challenges American Christians to examine how society has manipulated the gospel to fit our cultural preferences).
Commentaries on James:
"The Letter of James" (Douglas Moo), Pillar New Testament Commentary (2000)
A scholarly commentary, focuses on more technical elements
"James" (David Nystrom), NIV Application Commentary (1997)
Has a good balance of scholarly notes with practical application
"Exalting Jesus in James" (David Platt), Christ-Centered Exposition Commentary (2014)
A very readable, non-technical commentary by pastor David Platt
