Unger's Commentary on the Old Testament is a remarkably helpful book. In fact, I venture to say that it is the best single volume (but originally 2 volumes) commentary on the Old Testament ever written. It has choice insights into the language, culture, archaeology, cross references, context, outlines, and exegetically significant details of any given passage. When I assign this book for students in my Old Testament classes I consistently get comments on how excellent this book is. NOTE: This is not Unger's Bible Handbook. It is far different: much more detailed. His treatment of Messianic passages in the Old Testament is alone worth the price of the book. Originally published by Moody, this is now carried by AMG. Highly recommended. I really wish that Logos would consider adding this magisterial work to their library and make it available to a wider audience.