Who does Paul always write to in his letters?
Paul always addresses his letters to the believer, regardless of the specific epistle, whether Romans or any other. He writes to those who have received and stand in the gospel. The Word may also affect unbelievers, but his primary audience is the believer.
Les teaches that Paul always writes to the believer, whether it is Romans or anything in between; he always writes to the believer. As he writes to the believer, the Word of God will naturally have an effect on the unbeliever. Les points back to Romans chapter 10, where Paul writes that how can they hear without a preacher, or a teacher, or a go-between, and how can they understand the Word unless some human instrument explains it. Then he comes to the capstone: '...for faith cometh by hearing, and hearing by the Word of God.' That is why Les teaches, hoping every believer will be skilled enough in Scripture that God can use them to present this gospel to anyone searching for the plan of salvation. Paul declares the gospel he preached, which they received, wherein they stand, and by which they are saved, if they keep in memory what he preached, lest they have believed in vain.