My pastor is preaching through Revelation this year and as we got to chapter 12, we studied John’s vision of spiritual warfare in the heavens and the earth.  Another quote from my favorites list (see past posts) is by one of my former presidents at LifeWay, Thom Rainer, who said, Satan has a simple agenda…to keep people lost. But another tactic of his is to keep saved people ineffective as disciples.  Pastor Robby Gallaty recommended a book by C. S. Lewis, The Screwtape Letters, and since I hadn’t read it, I ordered a copy. It truly exposes how subtle the devil is and how naive we can be about how…