- For most pastors and teachers, this will be the most helpful book on John you buy-- it was for me, in teaching through John. I'd say, if you can only own three, it'd be this, along with Rodney Whitacre (IVP), and probably Francis Moloney (Sacra Pagina). Barclay will consistently move you spiritually, in a way that others may not.
- A brilliant commentary. Whitacre uses a narrative/literary approach to great effect, without the reader even necessarily being aware of what he's doing. Warm, practical, and hides its brilliance and sophistication in simple language. Possibly the best commentary on the book; probably the most helpful for anyone preaching or teaching through it.
- I can't imagine trying to teach through 1 Corinthians without this one. Judiciously uses Bruce Winter, among others, and has a knack for getting at what's important, and focusing on what's important. More importantly, he actually moves you spiritually, in a way that some others definitely don't.
- I own a paper copy of this commentary, and I don't find it very helpful. He doesn't interact with the actual text very well-- there is a gap, and he focuses more on other scholars than the text, and his explanation of the Hebrew is inadequate. The example that jumps out is the wayyiqtol in Joshua 2:4 (NRSV much better than NIV here). He's embarrassed by the conquest and kherem, and the way he explains the tensions in the book between completed/peoples still everywhere isn't great. Personally, I found Dale Davis much better, as far as reading the text in a hermeneutically sensitive manner, while taking the book seriously as literature. You read Davis, and you're lifted up, ready to praise God and teach others. And Hess is a good secondary option--a great little commentary for its size (I find him more helpful than Butler or Woudstra). Combine those two with Michael Heiser's understanding of the purposes of the conquest (take the land, kill the descendants of the Nephilim), and you'll be well on your way to teaching/understanding. Matties's commentary left me feeling gross, with the way he engaged the text. And, the commentary series as a whole is designed to not give "the" reading of a book, but instead throw lots of different possibilities at you. I find that unhelpful-- deliberately muddying the waters to avoid giving what you think is an authoritative interpretation. If I want two perspectives, I'd rather read two commentaries. But that's just me maybe.
- How great is this book, and the datasets? This is the reason you should buy logos over any other software program. This is a book that changed my life forever. Everything I ever taught on the NT before reading this book, I threw away. I'm far more able to trace the argument and flow of a passage; I'm able to emphasize what Paul (for example) emphasizes, and not make a huge point out of something small. I'm much closer to reading Paul as Paul. I use commentaries far less frequently, and when I do, I'm far more unhappy with them. My teaching is better, and my lessons/sermons take hours less time than they used to. Between this, and Buth's chapter on participles in The Greek Verb Revisited-- it's night and day from what it was. It's also made me far more aware of how I teach,and I find myself using things he teaches. The bottom line is this: Buy this book.