
Here a nice TNTC volume gets an update that will extend its usefulness for a long time to come. When I think of Wayne Grudem, I think Systematic Theology since that volume is perhaps as influential as any in print today. What he proves here is that he can run too in the commentary-writing world. He may have written a couple paragraphs in a systematic theology style in this book, but this a truly helpful commentary.
The 50-page Introduction is pretty full as this series goes. He is consistently conservative in his conclusions and I found myself agreeing with him at many points. More important to you, he explains how he arrives at those conclusions quite lucidly. For those who care, he interacts with scholarship well without letting that dominate. He also is not afraid to go against the grain where scholarship has gone amok. For example, he dispenses with the idea that 1 Peter is meant to be read as a baptismal sermon. As he effectively shows, baptism is hardly mentioned in Peter and then mostly in cursory way. How do scholars fall in these ditches?
Half way through the Introduction he transitions to theology and major themes. Don’t miss this section as that can be a great aid to understanding Peter. He works through twelve themes found in 1 Peter and you’d be hard pressed to disagree with his twelve.
If you are familiar with this series, you’ll find this a good representative of it. There are constraints on length, so it’s the type of work where every sentence counts. And here they did. Background, exegetical understanding, and a bit of theology pervade the writing on every passage. This is a fine commentary. 
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