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This rich resource is highly recommended by the leadership here at Grace. Every book of the Bible is covered in Dr. Rosscup's book.
If you're serious about doing in-depth Bible study, this is a tool that would greatly enhance your quest for the most excellent study material available.
Here are a couple samples from Dr. Rosscup's book. The first sample is at the beginning of his book, where he rates the top commentaries, and divides them up into three categories. The second example is found later in the book under his section on Romans, specifically, where he provides a review of the strengths and weaknesses of each work listed.
Sample 1 (taken from page 13):
Romans Commentaries
Detailed Exegetical Expositional Survey Devotional Flavor
1. C. E. B. Cranfield (ICC) 1. R. Mounce 1. R. K. Hughes
2. D. Moo 2. A. J. McClain 2. A. Johnson
3. T. Schreiner 3. Leon Morris 3. D. M. Lloyd-Jones
4. W. Sanday/A. Headlam (old ICC) 4. J. MacArthur 4. W. H. Griffith-Thomas
5. W. Hendriksen 5. F. F. Bruce 5. D. Barnhouse
6. J. Murray 6. J. Witmer (BKC)
7. J. Fitzmyer 7. J. Stifler
8. J. D. G. Dunn 8. J. Stott
9. E. Harrison 9. W. Newell
10. J. M. Boice
Sample 2 (taken from page 256):
"McClain, Alva J. Romans, The Gospel of God's Grace. Chicago: Moody, 1973.
A non-technical commentary but often perceptive in explaining what is crucial in a passage.
McClain, better known for his premillennial work The Greatness of the Kingdom, is easy to read
but has depth. In his thinking, 7:14ff. presents Paul as a saved man and 8:4-9 is a contrast
not of two kinds of Christians but of Christians and non-Christians. The section in Chapters 9-11
is perceptive regarding Israel's role in God's plan for the future as distinguished from the church."
The 1993 version of this work can be purchased, usually used over the internet, but our recommendation is for the revised 2004 edition.