The Logos Bible Software “Free book of the Month” is Gary V. Smith’s Mentor Commentary on Amos published by Mentor in 1998. The book was originally published by Zondervan in 1989, this is a “revised and expanded” edition. In the preface, Smith says the revisions are some developments in his own thinking about Amos especially as it relates to the “Sociology of Knowledge.”
You may recall Gary Smith’s recent Interpreting the Prophetic Books (Kregel, 2015) which I reviewed in May, or his commentary on Isaiah in the NAC series from Broadman & Holman. After this Mentor commentary was published, he contributed Hosea, Amos, Micah in The NIV Application Commentary (Zondervan, 2001). He has also contributed sections on Isaiah and Esther in Jason DeRouchie, What the Old Testament Authors Really Cared About (Kregel, 2014).
In addition to the free book, Logos is offering Irvin A. Busenitz ‘s Mentor Commentary on Joel & Obadiah for only $1.99. Busenitz was at Talbot Theological Seminary before becoming a founding member of The Master’s Seminary. This commentary was published in 2003.
Both Smith and Busenitz represent conservative voices on the prophets, so there is little in these commentaries discussing sources for the prophecies or potential revisions (such as those suggested by Wolff in his Hermenia commentary on Amos, for example). Smith gives a brief overview of composition theories for Amos and conclude these theories risk “stripping the heart” from the message of the prophet. With respect to Joel, Busenitz dates the book early, about 860-850 B.C., although he does recognize there is no “easy solution” to the complex problem of dating this particular prophet. Likewise, he dates Obadiah to the reign of Jehoram and before Jeremiah rather than the later Exilic date. Both commentaries represent careful exegesis from a conservative perspective from scholars who are experts on the Hebrew language.
Be sure to get both books during the month of September and enter the contest to win all 16 volumes of the Mentor series ($370 value).
As a bonus, Zondervan is also giving away a book in the Logos library: Walter Kaiser’s The Promise-Plan of God (Zondervan, 2008). This is a “biblical theology of the Old and New Testaments.” Like Goheen and Bartholomew’s The Drama of Scripture (Baker), this is a college level textbook which offers an overview of the story of the whole Bible. Anything Kaiser writes is worth your attention.