I am an Eastern Rite Catholic so I 'm asked lots of questions about everything outside of Roman Catholic. I’m not a theologian but here are my thoughts.
Remember, the apostles went with disciples to spread the word of God all around the world. The world has different languages and different cultures. Now, (just like when I studied the Apocalypse with John) put yourself in their feet. How do you teach the Words of Jesus if you dont know the language or culture?
There is Coptic (Egyptian), Maronite (Syrian), Ukrainian/Ruthenian/Carpathian (Rus) ‘per history’, Greek,and so on.
For example: St Andrew ministered to the Ukrainians. With him were 2 Greeks,Cyril and Methodius. Cyril & Methodius learned the language and put it down in the only way they knew, with Greek words/alphabet (that’s why I can read Greek, though I’m Ukrainian). St Andrew had to learn the ways of the Ukrainians (then called Rus - before the breakoff) to minister to them.
All the differences between Ukrainian/Ruthenian/Coptic/Marionite/Slavic etc.etc. all have to do with nationality.
All any of us really need to know is: IS IT CATHOLIC OR ORTHODOX? Any other differences are nationality based, not religious based.
One of the difficulties in ministry to the Chinese is because they were under the impression that they would have to lose their centuries of culture because of the faith.And ministering to them was very difficult.
There are 2-3 differences between Catholic and Orthodox. However, I have the John Paul II catechism which states that the Catholic Church sees our Orthodox brothers as the same…as the priests are taught as Catholic priests are, and the Catholic Church sees the Communion of the Orthodox as valid as ours (we should not seek them out but it is acceptable as per the Catholic church).
I live 2 blocks from an Orthodox church, so I contacted the priest there. He said he has quite a few Ukrainian Catholics who attend his church, however, his bishop forbids him to give the sacraments to someone who is not Orthodox.
Here’s what really blows my mind:
I was reading about the Great Schism (1066 - separation of Orthodox and Catholics). Before this time there was no such thing as ‘orthodox’. So, I taught my kids that the Catholic faith is the only faith that can trace itself back to Jesus and the original Apostles. Any other faith was a human decision to break away. In my research, I’m finding that the
Catholic side says the orthodox broke away from the church, and the orthodox side says the Catholic broke away from the church. And both have vaid reasons for this.
Which is the true one