To the scholar, it will warm his heart and prod his mind. To the pastor, it will cause him to see the need for precision in language and push him to do that on tough texts. To Joe in the pew, read chapter 11 and the appendices and be challenged to think deeper about what Saint Paul really said. There are occasional places where Piper gets repetitive, but not to a fault. You can tell he has really studied and conversed with Wright in this book. Piper even thanks Wright in the intro for his 11,000-word response to Piper's first draft. There are sections where I'm convinced that the standard Reformed understanding of imputation/justification cannot fit. There are other places where the New Perspective's "covenant faithfulness" can't quite be seen. Still, this is exactly how theological debates should be handled.