and, yes - early christianity itself was another example of greek discourse in opposition to authoritarian rule, it just happens to be the one that got badly co-opted, and turned into a vehicle of tyranny, culminating in (but not beginning with) constantine's declaration that he saw a cross in the sky that demanded he conquer in it's name, perhaps after consuming too much ergot. we forget it was the romans that invented the holy war to attack the persians, and neither the crusaders nor the arabs, who both adopted the idea from the book of roman tactics.
whatever early christianity's position on these matters was, the institution that developed in western europe after the fall of rome and called itself a christian church had little resemblance to anything championing discourse over authority.