So you should have no problems with the Catholic Church's claim that only they can validly interpret the Scriptures. I doubt that this argument held much weight among Jewish listeners of Paul when Acts 15 did away with circumcision. It wasn't like Paul could point to a verse that foretold that circumcision would go away. No, there was no Sola Scriptura being utilized by the Apostles. They were following what they SAW with their OWN EYES! They didn't need to rely on the Bible and proof texts. Refering to the Scripture merely showed that it was part of God's plan from the beginning, IF you took a Christian view of the Scriptures. Jews disagree with those interpretations, don't they? What convinced people was the proclamation of the witnesses, not verses in the Bible alone...
Regards
Your claim is not biblical