Jelly glanced over at Sergeant Migliaccio, first section leader. "Five minutes for the Padre," he stated. Some of the boys dropped out of ranks, went over and knelt in front of Migliaccio, and not necessarily those of his creed, either -- Moslems, Christians, Gnostics, Jews, whoever wanted a word with him before a drop, he was there. (Starship Troopers)
I seem to vaguely recall hearing the word Gnostic/Gnosticism in a Heinlein context before, but cursory Googling didn't show any obvious hits.
Were Gnostics (or Gnosticism as a religion) a name used elsewhere in Heinlein's work?