Seriously? You need the Catholic Church to tell you that Paul the Apostle wrote the Bible book Romans?
Paul, a servant of Christ Jesus, called to be an apostle and set apart for the gospel of God the gospel he promised beforehand through his prophets in the Holy Scriptures regarding his Son, who as to his earthly life was a descendant of David, and who through the Spirit of holiness was appointed the Son of God in power by his resurrection from the dead: Jesus Christ our Lord. Through him we received grace and apostleship to call all the Gentiles to the obedience that comes from faith for his names sake. And you also are among those Gentiles who are called to belong to Jesus Christ. To all in Rome who are loved by God and called to be his holy people: Grace and peace to you from God our Father and from the Lord Jesus Christ. (Romans 1:1-7)
How about Ephesians?
Paul, an apostle of Christ Jesus by the will of God, To Gods holy people in Ephesus, the faithful in Christ Jesus: Grace and peace to you from God our Father and the Lord Jesus Christ. (Ephesians 1:1-2)
How about Galatians?
Paul, an apostlesent not from men nor by a man, but by Jesus Christ and God the Father, who raised him from the dead and all the brothers and sisters with me, To the churches in Galatia (Galatians 1:1-2)
How about, oh, First and Second Corinthians?
Paul, called to be an apostle of Christ Jesus by the will of God, and our brother Sosthenes, To the church of God in Corinth, to those sanctified in Christ Jesus and called to be his holy people, together with all those everywhere who call on the name of our Lord Jesus Christtheir Lord and ours: Grace and peace to you from God our Father and the Lord Jesus Christ. (I Cor. 1:1-3)
Paul, an apostle of Christ Jesus by the will of God, and Timothy our brother, To the church of God in Corinth, together with all his holy people throughout Achaia: Grace and peace to you from God our Father and the Lord Jesus Christ. (II Cor. 1:1-2)
Or Philemon?
Paul, a prisoner of Christ Jesus, and Timothy our brother, To Philemon our dear friend and fellow worker also to Apphia our sister and Archippus our fellow soldierand to the church that meets in your home: Grace and peace to you from God our Father and the Lord Jesus Christ. (Philemon 1:1-3)
In fact, EVERY one of the New Testament books identify the author right there in the beginning of the book (with the exception of Hebrews). You don't need your church to tell you what God already told you. The Bible we have is the Bible HE made sure we have and it is every bit as authoritative, reliable, trustworthy and inerrant as the Old Testament assurance that the Jews had. They knew they had a miraculous gift from God and so can we. STILL!
Post the autograph from Saint Paul that closes the case outside of Catholic tradition? It does not exist.
You would be laughed out of any court in the world if you presented the writings of Scripture as authentic.
You believe them based on faith. I believe them based on faith too and have no problem to admit this because I have faith