If the church was already establised in Jeruslem what better to place to set up it's headquarters. I'm not saying not go to Rome to teach. I'm saying why set up your main headquarters there if you are Peter, a Jew, and had a good church already going in Jeruslem. That would be the logical place to set up. Did Peter realize he was the head of ALL the christian churchs at the time, did he realize when he was in Rome that he was setting up what would be the head quaters for his church, or did that happen after the fact.
Becky