I’m sorry, did I say the Bereans had any authority? No I did not. I said that they searched the scriptures daily to see if the things that were said authoritatively were in fact scriptural. Which is exactly what we are called to do. That way we don’t end up believing nonsense spewed from fallible men who are somehow believed to possess truth from outside God’s Word.
You seem to be writing that the Bereans were capable of judging whether the things that were said authoritatively were in fact scriptural. The things that were said authoritatively were in fact scriptural, because the Apostle Paul was a chosen vessel of the LORD Jesus Christ and it was the Apostle Paul saying them. Searching the scriptures only helped the Bereans to believe him; it did not grant them any help in separating truth from error. There was no error. Concerning the Bereans, it was all about the evangelism of them by an apostle.