[xzins]

“The Greatest of All Protestant Heresies”?

That's easy: disunity

[Cronos]

I disagree — because that’s not really a “heresy” i.e. a belief system :)

[Cronos]

Disunity is a problem in Christendom -- if you read through history, we were roughly united from 250 to 330 AD and then due to political reasons (Sassanid v/s Romaoi), the Assyrian Church of the East separated from orthodoxy. Then there was the Oriental Churches and Orthodoxy splitting over, in my opinion, nationalistic driven (Egyptians v/s Greeks) theology (in the sense that nationalism lead the fervour of the debates rather than the other way around)

Due to these two splits, when Islam came, it was easy to get Copts to fight against orthodox

Then Catholics and Orthodox disunity led to the losses against the Turks culminating in the fall of Constantinople

Then the Lutheran v/s Catholic v/s Calvinist struggle diverted resources from fighting the turk, and culminated in 1683 with Calvinist Hungarians fighting on the side of the Turk against Christendom (nationalism at rise)

You then had the French competing with the GErman Empire to be "the friend of the Moslems" and the English doing that the best (they enabled teh Wahabbi take over of Saudi arabia, that led to Al qaeda, the taliban, al-shabab, the islamic state, boko haram etc. + they also created Pakistan and caused the Palestinian problem)

Christian disunity is the constant theme throughout history which has led to Islam WINNING 3 times (in the 7th century, in the 15th and in the 16th and 17th).

If Christendom had remained united (and I see Catholics, Lutherans, Anglicans, Calvinists, Orthodox etc. all to blame in some way or the other) or at least saying "I will suspend my animosity to other people who believe in Jesus Christ as Lord, GOD and Savior to fight those who don't" -- if we hadn't been disunited, Islam would still be concentrated around the Mecca-Medina area

[Cronos]

On re-reading my post above, I see that perhaps the root cause of a lot of problems was nationalism -- and I'm not talking about nation as the USA or Canada, but something deeper (which the USA hasn't got yet), but ethnicity - naród -- the sense that we are one family, one clan, one tribe.

Anyway, so you see how nationalism seems to have been very good in keeping Christians apart (though alternatively, having a distinct religion also kept nations together -- witness Jews, Armenians, YAzidi, Samaritans, Irish, Poles, etc.)

[Cronos]

In terms of "heresy" today, the big one is secular liberalism as personified in the homosexual mafia attacks against various christian denominations.

Squabbling in house while the enemy attacks without is like the fall of Sicily or nearly the fall of Vienna.