One way to approach the epistle text for this week is to talk about the spiritual discipline of saying yes and saying no, an idea I was first introduced to by M. Shawn Copeland. (I find The Message translation of this passage helpful here.) God created us with the freedom to say yes and say no. But as Paul reminds us, we don’t always know how to use this freedom very well.
Back in the mid-1990s I wrote a book on sin. Each of us knows sin experientially, of course, but few of us know it comprehensively even in that way because we are parochial even in our sinning. So I had to study sin. For a couple of years I read about sin in the Bible. I read commentaries on the Bible, theological encyclopedia articles and books on virtue and vice.