As stated, I find the Eucharist as the Real Presence to be where Protestants have fallen into error the greatest.
It is something that we know to be true and we have centuries of church teaching of the Eucharist. Yet for some Protestants all history before the "Protestant Reformation" is disregarded or ignored or twisted.
I showed how Martin Luther, who started the Protestant Reformation, said the Eucharist is the flesh of Christ. It was from Calvin and his personal interpretation of scripture, lacking any historical evidence, that the Eucharist became only symbolic in the minds of those that chose this teaching.
So this to me is one of the most obvious errors that has come from Protestantism and Sola (Solo) Scriptura.
It doesn't particularly worry me if you believe what you want to about communion or whatever else, but I would prefer it if you would stop going around saying how it is a Protestant error when an analysis of the Bible and the culture of the day gives general support to our position (on communion in particular).
It's just like with how Catholics have such a high regard for Mary and the saints and even believe that these dead people can intercede on their behalf (no... they're dead), particularly when the veil was torn and it is Christ who intercedes on our behalf (why would you want to go through a fellow beggar?), while I disagree with that Catholic doctrine it doesn't particularly worry me if you do or not, except when you move to enspouse that as truth (i.e. as the 'Christian position') that it annoys me and must be countered. The same is true of other Catholic doctrines like purgatory.
No one has all the answers or has it right on every theological issue, particularly the Catholic church, but also the various Protestant denominations, the Baptists, for example, place an unhealthy (IMO) importance on baptism, the SDAs on the sabbath, and the Calvinists on predestination.
I guess what I'm saying is that we are all Christians and that it is proper and right to comment on the core-doctrines as truth, but it is possibly deceitful to present secondary (subjective) doctrines as truth, when the Bible viewed through objective glasses simply doesn't support it. I believe it's okay to say, "We think..." or "We believe..." but not alright to say "The Bible says..." on such doctrines or beliefs, especially when, to be blunt, it doesn't. You can twist it anyway you want (i.e. intentionally or out of ignorance) but that doesn't make it true and disgraces God's Word.
