Canonical Quotes
Logion 10 has a parallel in Luke xii. 49, but with a change of emphasis. The canonical version looks to the future: "I came to cast fire upon the earth, and how I wish it were already kindled!" In Thomas the fire has been kindled: "I have cast fire upon the world, and behold, I guard it until it is ablaze." This raises an interesting problem in relation to the common source of Matthew and Luke, since Matthew (x. 34) records a saying, "I came not to cast peace, but a sword." As already observed, something like this appears in logion 16, but in the saying in Thomas "division" and "fire" are paralleled in Luke, "sword" in Matthew. The question is whether in Thomas we have a conflation of the two synoptic versions, or a form of the saying derived from an independent tradition.
Thomas the Apostle
What then is truth? A movable host of metaphors, metonymies, and anthropomorphisms: in short, a sum of human relations which have been poetically and rhetorically intensified, transferred, and embellished, and which, after long usage, seem to a people to be fixed, canonical, and binding. Truths are illusions which we have forgotten are illusions - they are metaphors that have become worn out and have been drained of sensuous force, coins which have lost their embossing and are now considered as metal and no longer as coins.
Friedrich Nietzsche