I would like to know what the most important thing is for someone examining Orthodoxy to consider.
I had a really great experience at a local Orthodox Church this past Sunday and am very intrigued.
As my name on here suggests “Come Home to Rome”, I am very partial to my Catholic Church.
After my shockingly positive experience, at the very least I will examine the Orthodox Churches.
In the process, don’t want to leave a single rock unturned.
This thread seems to have strayed off topic from your original question. I hope to try and respond to
your question itself and thereby pull at least part of this conversation back on topic.
As an Eastern Catholic who has worked for a number of years in Catholic-Orthodox ecumenical relation, I would echo more-or-less what our brother, Constantine, has said. Do not attempt to compare Orthodox (or Eastern Catholic) theology to Roman/Latin Catholic theology. As someone else has so wisely pointed out, we not only go about theology in different ways, but we even ask different questions. This is due primarily because of differences in the historical and cultural developments that conditioned the Churches of the East and West (to say nothing of the Oriental Churches). So while we do hold to one and the same essential Faith, we express that Faith very differently to the point that, on the surface, we often seem to be contradicting one another.
Pope John Paul II encouraged all Catholics, and Roman Catholics in particular, to become familiar with, and to develop a deep love of, the traditions, spirituality, theology, and history of the Eastern Churches. Here he was speaking not so much of the Eastern Catholic Churches - although they are certainly implied - but of the Eastern and Oriental Orthodox Churches who are the Mother Churches of all the Eastern Catholic Churches (save the Maronites). So as an Eastern Catholic I would certainly encourage you to study
both Eastern Orthodoxy and Eastern Catholicism.
To that end there are a number of things you can do. First, attend Divine Liturgy at an Eastern Catholic or Orthodox parish at least on regular occasions (not necessarily every Sunday). Implied in such an attendance would also be attendance at the other liturgical (Liturgy of the Hours) and para-liturgical (akathists, molebens, paraklesis) services offered in most Eastern Catholic and Orthodox parishes. To really understand Eastern thought, theology, and spirituality, one has to be intimately familiar with the full liturgical life of the East, not just the Divine Liturgy.
There are also some wonderful books out there that you could read. The books
The Orthodox Church and
The Orthodox Way by Metropolitan Kallistos (Ware) of Diokleia are considered by many to be essential introductory reading for inquirers into Orthodoxy (and Eastern Catholicism). I would agree and add to it his wonderful
The Inner Kingdom as a basic introductory text to Eastern/Byzantine spirituality as well. Also, the
Light for Life catechetical series published by the Byzantine Catholic company “God With Us” publications, is excellent and well worth the money. Finally, my personal all-time favorite is Melkite Greek Catholic Archbishop Joseph Raya’s book
Face of God. You can’t go wrong with any of these books.
