“These people admit with the Latins that the Holy Spirit proceeds and derives His existence from the Son. Yet, with us, they say the Spirit proceeds from the Father.
The Latins imagine that this addition to the Creed is lawful and just, but we will not so much as pronounce it. They state that unleavened bread is the body of Christ, but we dare not communicate it. Is this not sufficient to exhibit that they came to the Latin council not to investigate the truth, which they once possessed and then betrayed, but simply to earn some gold and attain a false union?
Behold, they read two Creeds as they did before. They perform two different liturgies – one on leavened and the other on unleavened bread. They perform two baptisms – one by triple immersion and the other by aspersion; one with Holy Chrism and the other without it. All our Orthodox customs are different from those of the Latins, including our fasts, Church rites, icons, and many other things.
What sort of union is this then, when it has no external sign? How could they come together, each retaining his own?”
+ St. Mark of Ephesus