I have never heard of that passage being used to justify any crusades. What historical
writing shows this? WHat histories of the Crusades for example? It sounds strange.
THe passage is taken from Romans 12 and can be seen in the quick link below
www.ethiopicbible.com/books/%E1%8B%88%E1%8B%B0-%E1%88%AE%E1%88%9C-%E1%88%B0%E1%8B%8E%E1%89%BD-12Romans 12
19 Dearly beloved, avenge not yourselves, but rather give place unto wrath: for it is written, Vengeance is mine; I will repay, saith the Lord.
20 Therefore if thine enemy hunger, feed him; if he thirst, give him drink: for in so doing thou shalt heap coals of fire on his head.
21 Be not overcome of evil, but overcome evil with good.
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As can be seen this has nothing to do with any burning, slashing crusading activity.
In fact just the opposite- the faithful who suffer unjustly are counseled to use patience-
for the vengeance will sooner or later be served- like we say these days: "What goes around,
comes around."
And in fact the verse: "If thine enemy hunger feed him.. for thou shalt heap coals of fire
upon his head.." means that the patient, forgiving conduct of those who suffer
unjustly will burn or affect the consciences of your persecutor or enemy. "Coals of fire" means that
their consciences will bother them. They did you wrong, but here you are doing them good..
That has an effect on people believe it or not.. and if they don;t make amends, they will have
to answer for that unjust conduct, sooner or later in this life, and on the other side.
Martin Luther King used this moral framework in part- the patient, peaceful conduct of civil rights marchers
who were beat up, bombed, spat upon, etc heaped "coals of fire" on both white liberal and conservative
consciences, and led to some reforms because of those burning consciences. Course things did
not always work out smoothly, sometimes 2 steps forward, 1 back, but the general principle is there.
And the patient suffering is also redemptive, transforming the sufferer and building their moral strength
for the long haul, as King also emphasized.
So the meaning and context has little do do with any militant fanatics slashing and burning. If a Crusader
said vengeance is mine, he is clearly referring to HIS own personal vengeance, not GOd's. THe passage is
pretty clear, and King drew on it as such.
What did the orator mention about the quote?