You are probably supposing that the title of the post relates to Paul's theological motif in Romans. Well, it does, but not in the way you might expect. Here's the deal, every month, Faithlife Corp. (who has brought us great tools such as Logos Bible Software) generously gives away a free resource (no strings attached, really), such as a digital book or commentary.
This month (October, 2016) is a phenomenal prize, Craig Keener's Romans commentary. If you aren't familiar with this Asbury distinguished scholar and are a NT biblical studies and research person, you have been missing out. His list of works are extensive. I have used his written and media content and greatly benefited. He is well researched and articulate. Best of all, this is free. Who doesn't like a free gift? Click, and it shall be given.