"A similar saying in Luke 12:49 is clearly eschatological. "I came to cast fire on the earth, and how I wish that it were already kindled." Thomas changes future to past and present. The fire has been ignited, and Jesus keeps the world until it burns up; to be near the fire is to be near Jesus and the kingdom (Saying 82)."
January 1, 1970
https://en.wikiquote.org/wiki/Thomas_the_Apostle