- Why did the leader of the church change from being an apostle to a bishop?
Because the Apostles installed Bishops over the Church. It is well attested, both in the New Testament, and in the ECFs.
- Why didn’t John or Paul, who were apostles, become the next “Head of the Church” rather than a relatively obscure bishop named Linus or Clement?
Do you mean St. Paul of Tarsus? He died about the same time that St. Peter did, and was almost certainly in prison for some time before he did die. Additionally, as St. Irenaeus makes clear
“The blessed apostles, then, having founded and built up the Church, committed into the hands of Linus the office of the episcopate. Of this Linus, Paul makes mention in the Epistles to Timothy. To him succeeded Anacletus; and after him, in the third place from the apostles, Clement was allotted the bishopric.” Notice “apostles” referring to both St. Peter and St. Paul, the founders of the Church in Rome. As for the other Apostles, they had missions of their own and were obviously not in Rome.
Additionally, there was no “second in command” in the Church as Christ never said anything about that. The Church, very quickly, attested to the primacy of Rome, and that was confirmed over and over in the ECFs, and the councils. I would bet that immediately after the death of the Apostles in Rome there was little thought given to who might inherit St. Peter’s office as Prince of the Apostles, or even
if somebody even might.
- Why was it the Bishop of Rome who was given the right of succesion? Was it not Rome that executed the Lord Jesus, Peter himself, and even Paul the apostle? What made that area special? Why not the bishop of some other city?
Why would you wonder about that? Rome has the primacy because it is the See of Peter and Paul. And what does the relationship of Rome and the death of our Lord have to do with it? Jerusalem was a very significant See in the Early Church and yet it was there that our Lord Died and many there were complicit.
- Wasn’t it Jerusalem or Judea that was the center place for the church until they were driven out in 70 AD by–of course-- the Romans?
Well, there you go. And who killed our Lord exactly? And yet you recognize that they were central in the early Church. So there goes your theory.
- Why doesn’t John, who wrote his epistles, gospel, and revelation well after Peter’s death ever mention the leadership of any other “Pope”?
Well, why would he, given the context of his writings, ever list the bishops of Rome? And I doubt that there was any contention among Christians about who the bishop of Rome was at any given time. I think you are also presuming that the bishops of Rome had universal authority as early as when St. John was writing. If Apostles were still alive I would imagine that they would still be seen as pretty authoritative. More than likely the Church settled on primacy of this or that See after all the Apostles were dead, and only then would such questions have started being relevant.
- Why doesn’t Paul mention Linus or Clement more than a passing verse at best?
How many verses should a
future bishop have warranted? However, again, why would he list anyone anyway? While he was alive he had authority, and it was only when he died that such questions would be relevant.
- I do not doubt in the least that Linus was, in fact, the second (or even first) bishop of Rome, but how do we know that the Bishop of Rome was ever supposed to be the leader of the church at all? That fact is conspicuously absent from scripture, whether it be the words of Jesus or the letters from the apostles.
Again, why would it be otherwise? Scriptures are not stereo instructions. You think that there should have been included a convenient FAQ for the Church. But, you forget that the Scriptures generally contain the Apostolic witness, and again while the Apostles were with us I doubt that there was little worry about which See was first in rank. That came later, and when it did the Church dealt with it as it dealt with all such questions. And during that time there is good witness to the role of St. Peter and the See of Rome, but many people just choose to reject that historical testimony.
- How do we know that Peter was ever a bishop? Who would have ordained him as such?
Well, if St. Peter as an apostle carried out the local functions that were later carried out by the bishop then he could be called the first bishop, historically speaking. That is why he is called the first Pope. However, obviously his office, just like St. Paul’s, was given directly by our Lord and nobody else. He held the primacy in Rome, simply because he was there as Apostle, and in the Church, by the command of our Lord directly. Who exactly was going to come along and say “Hey, Peter, just because Christ said you were the leader I think Fred over here should be.”
To mormonboy’s point, how do you know that the line of Popes during this period was unbroken? If I am not mistaken Catholics are not even sure of Peter’s first successor (Is it Linus or Clement I?), how can we be sure of his 200th?
Who was going to “break” it, and how? Who was the bishop of Paris in 845? Who cares? I am sure that there was one, but even there wasn’t sometime later there was, and I am confident that he was a real bishop. There is actually a very strong historical witness to the list of the very early Popes of Rome which includes St. Iranaeus, Eusebius, St. Hippolytus and others, but that doesn’t matter. What does matter is that the Apostles left us bishops, and those bishops left us others to take their place down to today. Rome is no exception. And the Church, from very early on, attested to the primacy of Rome, and why it held this primacy, and that is authoritative because Holy Mother Church is authoritative. And if you reject the history of the existence of those early Popes, as given by those witnesses, or that Rome was given primacy from very early on, then you may as well reject that Julius Caesar ever lived. The facts about his life are also all established on the testimony of contemporary and near contemporary witnesses, as is the very life of Christ himself for that matter.