I'm trying to track down the originator of the quote:

"Chicanery girds the robes of infidels..."

...from Mhilleas Cearrbhach's erziehungrsroman Hope to Recoup. The novel is no longer published and I can't find anything on Google, though I've gone at it from so many directions.

Cearrbhach develops the above quote like a leit motif in an opera throughout his novel--and I'm sure the quote must come from a religious writer. But I'm coming up with nada.

Thanks for helping if you can.