I didn’t get eleven verses in before I was shown how that Paul desired to visit the church of Rome (who are believers) so that he may preach the gospel to them (the believing church of Rome). The way Paul lead up to that was by detailing what all he desired to see and experience as a result of his preaching the gospel of Christ to the believers in the church of Rome:
“bestow some spiritual gift” among them that they might be strengthened (v. 11), therefore, he is ready to preach the gospel to the Roman believers (v. 15).
make it clear that he owes it to those who are wise (wise in the gospel? 2 Timothy 3:15–which would include Roman believers) as well as those who are unwise (again, unwise in the gospel?) to preach the gospel to them.
So, from this passage it seems to me that the benefits of preaching the gospel to believers is stronger faith (v. 11), comfort or encouragement (v. 12) and the fruit of faith: christian living (v. 13). So, as by so many other New Testament passages (some of which may be seen elsewhere on this blog) I am persuaded that believers will become stronger and more courageous (Joshua 1) and increase in bearing the fruit by which their faith is evidenced before others, not by an exclusive diet of “application” (Law/imperative), but by the gospel preached as foundational to any application made to believers in the pew.
I fear this goal has been lost by too many Evangelical preachers. I believe this is tantamount to sinning against their Lord by neglecting to feed the sheep what they need to be fed (John 21:17). So, to those preachers who believe and have sinned in such a way, may I remind you that Christ preached faithfully on your behalf because you couldn’t and haven’t and he then suffered the penalty of death which your unfaithful preaching has incurred, and then he rose from death to vindicate all the claims he ever made (his deity, messiahship and power to bestow forgiveness of sins, among other things). Therefore, it is my privilege to declare to those of you who confess this sin that God forgives you because of the obedient life and vicarious death and resurrection of Christ. . .
. . . now go and sin no more!