9 If you declare with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved.
**Romans 10:9 (NIV)
9 If you declare with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved.**
The epistles to the Romans (as were all of the epistles) was written to people that had already been born again:
“To all that be in Rome, beloved of God, called to be saints: Grace to you and peace from God our Father, and the Lord Jesus Christ.” Rms 1:7
Paul still writing to the church in Rome:
“..How shall we, that are DEAD TO SIN live any longer therein? Know ye not, that as many of us as were baptized into Jesus Christ were baptized into his death? Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life.” Rms 6:2-4
Paul continues:
“But God be thanked, that ye WERE the servants of sin, but ye have OBEYED from the heart that form of doctrine which was delivered you. Being THEN made free from sin, ye became the servants of righteousness.” Rms 6:17,18
The SUBJECT of Romans chapter 10 is Israel, for Paul is making it clear that God can save them just as he can save anyone else. But they need to hear the gospel preached by a preacher sent by God.
The keeper of the prison in Philippi was given an very brief intro to the gospel when Paul spoke the much quoted Acts 16:31. It’s the following verses that show that he was fully preached the Word and baptized.