Otherwise; The fox is a crafty animal, lying hid in ditches and dens, and when it comes abroad never going in a straight path, but in crooked windings; birds raise themselves in the air. By the foxes then are meant the subtle and deceitful daemons, by the birds the proud daemons; as though He had said; Deceitful and proud daemons have their abode in your heart; but my lowliness finds no rest in a proud spirit.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Mor., xix. 1