Interesting. I have been out of academics just long enough that I am no longer fully up to date on the state of NT and OT scholarship. Ran into this review and thought it might be interesting:
The introduction covers lots of ground including: ocassion and purpose of the letter, the message of Paul's opponents and Paul's reply, the new perspective on Paul, what time is it?, Galatians and Anatolian folk belief, Galatians and Pauline rhetoric, and offers an outline of the letter. In sum, Garlington dates Galatians pre-Jerusalem council, Paul's opponents were Jewish Christians arguing for a covenantal nomism, he is unconvinced about structuring Galatians along the lines of a rhetorical handbook, and he regards the letter as an "epistolary sermon".
Garlington writes: "In this regard, the Reformers were correct that if justification is not by Jewish tradition, then it is not by church tradition either. Salvation is not by 'religion', however conceived. This is the hermeneutical 'significance' or application of the historical issue at stake: only Christ can save, not religion or tradition. Christ must be, in the familiar phrase, a 'personal saviour'. When Paul became a Christian, he left 'religion' and came to Christ" (p. 25). Read more.