[ArGee]

I agree with G-Man. Paul was very much sola Scriptura. He argued from the Scriptures that Jesus was the Christ. I believe he probably spent the 3 days of his blindness reviewing the Scriptures that he had learned from Gamaliel in his mind.

[Mrs. Don-o]

You're quite right that Paul was very much a man of the Torah. Though he was a skilled Scripture scholar and, as you've noted, a student of Gamaliel, he also had other sources of religious truth: the spoken word of the other Apostles, like Peter, whom he sincerely consulted and learned from; and the direct encounter with Jesus Christ after His Resurrection and Ascension.

So he wasn't just "Sola Scriptura." he was Scripture-plus. In addition to the written Word, he was enriched by the oral Apostolic tradition (preaching and teaching of the Eleven and others who knew Jesus well), and direct mystical contact with Christ.

He also respected the authority of the Council of Jerusalem, which, under the guidance of the Holy Spirit, resolved disputed questions concerning the Gentile question. That's why Paul told Timothy that the Church, the Church itself, is the Foundationa and Pillar of the Truth. (Epistle to Timothy).