Care to relate any of these and how you would know they were apostolic?
I’ll assume that was a sincere question. OK, here are just a few:
infant baptism
baptismal regeneration
transubstantiation
which books are canonical
sacrifice of the mass
prayer to saints
how do we know these are Apostolic? because the Apostles and other disciples of Christ after the Lord’s Assencion into heaven, went all through the known world preaching the Gospel for a period of around 60 years. After they fell asleep, they appointed faithful men to continue the work of the Church. The Apostolic teaching was well established and when various Bishops travelled to other areas of the Roman Empire, they compared teachings and letters from the Apostles and soon discovered there was a common universal ( Catholic ) Faith they had received. This was soon referred to as the Catholic Faith, due to whether the Chuch was taught by Paul, or Pter, or James, or Andrew, they all received the same teaching. This is due to the same Holy Spirit moving them. This is how the canonical books of the NT were chosen, they had to match the Catholic Faith, or else the books weren’t accepted. There was no Church in the pre Reformation period that didn’t teach the doctrines i listed above. That’s how you know they came from the Apostles. Think and pray about it. I believe there are some people on these threads that are not haters, but are sincerely searching for what is true.