Where in your excerpt does it say a thing about Peter ever being Bishop of Rome? He came to Rome, but so did millions of others including Paul, who has just as strong a claim to being a Bishop of Rome based on this excerpt as Peter. Please note, Chapter headings were added by the editor. So, are you sure you have a clue as to how to read?
you wrote:
“Where in your excerpt does it say a thing about Peter ever being Bishop of Rome?”
Did you actually read the passage?
“He came to Rome, but so did millions of others including Paul, who has just as strong a claim to being a Bishop of Rome based on this excerpt as Peter. Please note, Chapter headings were added by the editor. So, are you sure you have a clue as to how to read?”
Yep. Read on (if you know how):
“After the martyrdom of Paul and of Peter, Linus was the first to obtain the episcopate of the church at Rome.”
Obtain the episcopate. Notice that? Some translations say “appointed bishop”. Not “found”. Not “establish”. Not “formed”. Not “created”.
In other words, it was already there. It already existed. Peter held it. Linus could only obtain it, could only be appointed bishop, after Peter was martyred for only then would the episcopate be open.