It wasn't enough to stablish the Romans who had a faith in the WHO of Jesus Christ (Romans 1:1-4 KJV) into the Body of Christ!
Romans 1:7 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.
Romans 1:8 First, I thank my God through Jesus Christ for you all, that your faith is spoken of throughout the whole world.
Romans 1:9 For God is my witness, whom I serve with my spirit in the gospel of his Son, that without ceasing I make mention of you always in my prayers;
Romans 1:10 Making request, if by any means now at length I might have a prosperous journey by the will of God to come unto you.
Romans 1:11 For I long to see you, that I may impart unto you some spiritual gift, to the end ye may be established;
Romans 1:12 That is, that I may be comforted together with you by the mutual faith both of you and me.
Romans 1:13 Now I would not have you ignorant, brethren, that oftentimes I purposed to come unto you, (but was let hitherto,) that I might have some fruit among you also, even as among other Gentiles.
Romans 1:14 I am debtor both to the Greeks, and to the Barbarians; both to the wise, and to the unwise.
Romans 1:15 So, as much as in me is, I am ready to preach the gospel to you that are at Rome also.
Romans 1:16 For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.
Romans 1:17 For therein is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith.