In 2007, when I was prayerfully thinking about returning to the Catholic Church, there were four theological issues that were deal breakers forme: justification, penance, transubstantiation, and apostolic succession. I have already discussed penance, transubstantiation, and justification. Here, I offer a brief account of how I became convinced that the Catholic Church is also right about apostolic succession.
Catholicism holds that if a Church claims to be Christian it must be able to show that its leaders – its bishops and its presbyters (or priests) – are successors of the Apostles. This is why the Catholic Church accepts Eastern Orthodox sacraments as legitimate even though the Orthodox are not in full communion with Rome.