Then one must wonder why it was Vat-1 had to say he was ?
Also the Roman-Catholic interpretation of that scripture is completely self-serving.
Peter is not the first Pope, nor is the papacy created or maintained in the New Testament. All of the Apostles were equals.
As far as any group of PEOPLE not being able to err, one only need read the book of Jude to find that argument a poor one.
Sure he was......yes it was.......no they weren't.
What group of people????....priesta can err, Bishops can err, Cardinals can err, Catholics can err, the Pope cannot err under VERY specific circumstances....when speaking from the chair of Peter on matters of faith and morals......any other time he is just another bishop....of Rome.