The Orthodox Christian Faith is the faith of the ancient historical Apostolic Christian Church. At the time of its founding, there was only one Christian Church. The final authority in Church matters rested with Councils of Bishops. In the 11th century, as a result of disagreement about the authority of the Roman Bishop, the Church split into two parts: Eastern Orthodoxy and Roman Catholicism.
“Be strong in the grace that is in Christ Jesus.
And the things that you have heard from me among many witnesses,
commit these to faithful men who will be able to teach others also.”
– 2 Timothy 2:1-3