The best book I have read on accomplished part of sanctification. A call to biblical proportions on different aspects of sanctification, the realized one being the lenses through which any Christian should read the imperatives to be holy. I highly recommend the book.
How enriched I was having this commentary in my arsenal studying 1 Corinthians. The socio-rethorical commentaries, especially those from dr. Witherington, are my new go to besides a technical and pastoral one when studying any book in particular.