It takes a lot of twisting to try to make them indicate a "magisterium" and then they fall far short.
>>The passage in Acts says that Paul and Barnabas and others were welcomed by not only the apostles and elders, but the whole church.<<
Actually it was Paul who was chosen by Christ and sent to the Gentiles. Even the passage the Catholic Church tries to use indicates that it was only "in the early days" that Peter was. Once the Jews rejected Christ Jesus sent Paul NOT Peter.
This leaves one to wonder if THAT was one of the handful of verses "infallibly"defined
Rome is not shy about giving herself power..