I have no doubt! Pride is one thing the Protestants never did surrender. Each and every one of you is the right interpreter of the faith. To you the only "false" doctrine is that which the Apostolic Church, which Christ gave us, taught from the beginning. Everyone else's "doctrine" is, of course, the "right" one.
SO the EO church left Rome over which pride, I mean error?
"To you the only "false" doctrine is that which the Apostolic Church, which Christ gave us, taught from the beginning."
I don't find anywhere in the scriptures where Christ gave us an institution called "the Apostolic Church". What I do find is He called people out of their sin to follow Him and when He left to intercede for those who follow Him, the Father and Christ sent the Holy Spirit to teach, guide and empower each of His followers to be conformed into His image and do whatever He commanded. He gifted certain people to equip the called out ones to fulfill His commandments and He gave the qualifications of those who He had gifted but ultimately He left it up to the individual followers to search the scriptures as illumined by the Holy Spirit to see if what was being taught conformed to the scriptures, not creeds, traditions or the authority of any man. That is what Luther was basing his stand on, the perspicuity of the scriptures and the witness of the divine teacher, the Holy Spirit.
Well, there's pride in men's cleverness to somehow find enough righteousness in themselves to choose to believe, and then there's pride in Jesus Christ who is the "author and finisher of our faith."
Reformed Protestants choose the latter, by the grace of God alone.
But of him are ye in Christ Jesus, who of God is made unto us wisdom, and righteousness, and sanctification, and redemption: That, according as it is written, He that glorieth, let him glory in the Lord." -- 1 Corinthians 1:29-31."That no flesh should glory in his presence.