I am a debtor both to Greeks and to barbarians, both to the wise and to the foolish—hence my eagerness to proclaim the gospel to you also who are in Rome.
For I am not ashamed of the gospel; it is the power of God for salvation to everyone who has faith, to the Jew first and also to the Greek.
Notice here that Paul wants to proclaim the gospel to those who are already believers! This Gospel is the whole of the Christian life, not simply our starting place. It not the ABC’s, after which we need theology, doctrine, good works, etc. It is the A-to-Z of the Christian life. When we think our churches, our preaching, and our lives essentially need something more than that, we begin to stray from the Gospel altogether.