Commentaries, like any books, can be good or bad though it can be hard to articulate why we feel some commentaries are better than others. I think that’s because we all assume that commentaries should be doing something, but we aren’t sure exactly what that something is. In general, I think some people would agree that commentaries attempt five general tasks: (1) give the reader a better historical understanding of the world in which the text was produced and (2)...