What actually should a JW or anyone coming from the Protestand movement it is to examine the Christian history from the Early Church until now. Doing this there are many questions that coming up and need to be examine:
1.Is the Holy Bible the only basis for the Christian faith?
2. Can you indicate a verse in the Bible that claims our basis for Christian Faith is only the Bible?
3. Who set the Biblical Canon?
4.What is the Protestand basis to accept the 66 books of the Bible instead of 77 that Orthodox and Catholic Church accepts?
5. Were in the Bible is telling us the Books that we should accept as the Biblical Canon are part of the Holy Scriptures?
6. Can you indicate a verse in the Bible that claims to be infalible?
7. Were in the Bible is telling us that the faith of the Church is being set according to the Bible and not the opposite?
8. In the Early Christian Church we had the Apostoles and the Prophets and they were appointed by the Holy Spirit Elders (Episkopoi in Greek)and this succesion is being carried for over 2000 years in the Apostolic Church, starting from James the first Bishop of Jerusalim.Do JW's or any Protestand has any Apostolic Succesion?
9. Has the Apostolic Church ever Apostasized?
10.Why do Protestands accept a Bible that was set by the Apostolic Church with Saint Athanasius(Greek Orthodox) at the 3th century who defined the Biblical canon and accepted the Revelation of John as the last book?Is it correct on their behalf to accept a Bible that came out from the "apostate" Christians?
11. What do the writtings of the first 2 centuries of Christianity indicate to us regarding the Christian faith since we have letters from the immediate succesors of the Apostles like The letter to the Church of Magnisis from Saint Ignatios the Bishop of Antioch? It was written between 97 AD - 107AD.
12. Would Jesus allow Satan to turn the Church that He set with His Blood an "apostate"Church, and Satan would truimph over Jesus Church for hundreds of years?
The function of the Orthodox Church can be traced for 2000 years. The reason the Apotolic Church added and the definition Orthodox-Correct dogma, teaching, is due to the schisma withthe Catholic Church.
In the Apostolic Church we had the teachings from the Apostles kept for 2000 years. The Church is synodic and the reason we had Synodos in the history of the Church was to guard the Christian faith from heretic ideas. So we had the definition for Trinity due to the fact that Arius a bishop came with this heretic idea.
Again the first Synodos is in Jerusalim for circumcision. The Bishops, and the Apostoles came with this decision after discussing the matter and with the power of the Holy Spirit. Local congregations enjoy freedom, and this is what is still going on in the Apostolic Church. since we have Orthodox Episkopi in Russia, Ucraine, Romania, Greece, Cyprus, Serbia, Montenegro, Georgia, Jerusalim, Syria, Australia, UK, USA, just to maintion a few. All are in union with the Ecoumanical Patriarch in Constantinoupolis. The Patriach has no possition like the Pope. He is an Episkopos(Overseer)and he is equal with the rest Episkops, and in no way he can change a doctrine without any Synodic meeting. And if he is out of line the rest Episkopoi will correct him.Besides this is not neccecary to be done, because in the Apostolic Church our faith is defined for 2000 years... While each one have their specific country customs and traditions, they all accept and follow the same Dogma as it was set by the Apostolic Church and the all accept the same Symbol of faith:
"I believe in one Father, Creator of heavens and earth, visible and invisible things, and in one Lord Jesus Christ the Son of God that was born from the Father but not created, and everything was created by Him. For our salvation, He came from Heavens and took flesh by the Holy Spirit and He became human through Mary the Virgin
Crusified by Pontius Pilate, burried and resurrected at the third day according to the Scriptures, and accending to heavens sitting in the right side of the Father. And He will come with Glory to Judge the living and the dead, in His Kindom that will be no end
And in one Holy Spirit, the Life giving, that proceeds from the Father, having the same worship and glory with the Father and Son, that was spoken by the Prophets, In one Holy Catholic Apostolic Church, I confess one baptizim for forgiveness of sins, I'm waiting for the resurrection of the dead, and in eternal future life."