The Cathars and the church's overreach
The Albigensian Crusade
Innocent III launches the Albigensian Crusade in 1209 AD — a military campaign against the Cathar population of southern France that becomes one of the most brutal in medieval history.
The papal legate Arnaud Amaury leads the Crusade to the city of Béziers, where Cathars and Catholics live together. The city refuses to surrender its Cathar population. The Crusaders breach the walls.
The soldiers ask the legate how to distinguish the heretics from the faithful. His reported answer — Caedite eos, novit enim Dominus qui sunt eius, Kill them all, God will know his own — may be apocryphal. It accurately summarizes what happened. The entire population of Béziers, estimated at between seven thousand and twenty thousand people, is massacred.
Arnaud Amaury writes to the pope: Today, Your Holiness, twenty thousand heretics were put to the sword, regardless of rank, age, or sex.
He uses it as good news.
The Crusade continues for twenty years, devastating a region of sophisticated culture and genuine theological vitality — Provence, the land of troubadours and courtly love — in the name of orthodoxy.
The Cathars are suppressed. The Inquisition is established to find and try those who remain. The region is brought under northern French political control.
The heresy is defeated. The cost is staggering. And the method — killing everyone and letting God sort them out — is not something that can be read as the way of Jesus by anyone reading carefully.
“Kill them all. God will know his own.”
— Arnaud Amaury, papal legate, at Béziers, 1209 AD (possibly apocryphal)
“But he said, 'No, lest perhaps while you gather up the darnel, you root up the wheat with them. Let both grow together until the harvest, and in the harvest time I will tell the reapers, First, gather up the darnel, and bind them in bundles to burn them; but gather the wheat into my barn.'”
Jesus said let both grow together until the harvest. God will do the separating at the end. Do not try to do his sorting for him in advance.
The Albigensian Crusade is the catastrophic consequence of ignoring that instruction — of deciding that the church could do God's separating early, efficiently, and violently.
The massacre at Béziers is the permanent indictment of every theology that claims to act in God's name while doing what God explicitly said not to do.
This is the hardest kind of theological error — not the error of denying God but the error of claiming to represent him while acting against his explicit instruction.
How do you guard against the version of this error that is available to you — the places where you claim divine sanction for actions that, examined carefully, contradict the one you claim to represent?