An interesting perspective of "discourse analysis" has been applied by Dr. Runge for these commentaries. It is certainly useful to anyone trying to understand the thought and argument of Paul in this letter, but it works better in conjunction with a standard exegetical commentary, such as Gordon Fee's NICNT volume, than by itself. As a new type of commentary, Runge's volumes are useful and thought-provoking, but they should be used alongside traditional scholarship to provide the best balance of historically grounded exegesis and fresh analysis. Runge should be found on the shelf (or in the Logos Library) of any serious NT scholar that is interacting with the discourse of these NT books. Those with limited funds should acquire traditional commentaries before these specialized ones, but should come back to these if at all possible.