This is an excellent work on the relationship between Romans 3:21-28 and James 2:14-26, which has always generated spirited discussion. Paul writes that man is justified by faith alone, apart from works, and James writes that man is justified by faith and works. The authors do a great job in emphasizing this cornerstone of the Reformation that God justifies by grace alone (sola gratia), by faith alone (sola fide) in Christ alone (sola Christus) without the works of the law as the instrument of salvation, the very essence of the gospel. They clearly explain the contrast between works and faith, explaining how they are mutually exclusive as they relate to the means of justification. They also explain exactly what the difference is between saving faith and non-saving faith, and how saving faith is experienced.
This leads to an examination of James, and the authors resolve the question: Are we justified by faith or by works? The answer, of course, is that we are justified by faith alone, but our works justify our faith in that, good works validate that our faith is a living faith and a true saving faith. James exposes the hypocrite who claims to have faith, but his actions or lack of fruit expose his lack of faith. Saving faith is a faith that works, or bears fruit.