Job 40:22

The words "the shadows surround it." Because of the size of the animal, [the author says], anywhere it goes, it casts shadows around it. The words "the crows like a torrent surround it." [This is said] because the habit of these birds is to approach and croak anytime they see something terrifying.

The shadows cover his shadow. 10. For all the wicked are in truth shadows of the devil: for while they give themselves up to imitate his iniquity, they derive, as it were, a form of resemblance from his body. But as the reprobate are his 'shadows' in the plural number, so each separate sinner is his 'shadow' in the singular. But when the wicked gainsay the teaching of the just, when they do not permit any wicked person to be corrected by them, the shadows of this Behemoth cover his shadow; because sinners, whenever they are conscious to themselves of sin, support another sinner in the same course. His shadows cover his shadow, when the more wicked support by their misdirected patronage the doings of the most wicked. And this they doubtless do with this object, that, while the fault, with which they themselves are bound, is corrected in others, they may not at last be reached themselves. They cover themselves therefore, when they protect others, because they foresee that their own conduct is attacked, by the same means as they see others confounded with bold reproof. And thus it happens, that while the aggregate of sins is defended, it is also increased, and that the guilt of each person is more easy of commission, the more difficult it is of punishment. For the evil doings of sinners derive so much greater increase, the longer they are permitted, through the defence of the powerful, to remain unpunished. But such persons, whether they seem to be within or without Holy Church, display themselves more openly as the enemies of God, the greater patrons they are of sins. For in defending themselves they fight against Him, Who is displeased with those doings, which they multiply, by defending them. Which conduct the Lord by the Prophet well reproves, under the character of Babylon, saying; Thorns and nettles shall spring up in her houses, and the bramble in the fortresses thereof. [Is. 34, 13] For what do we understand by 'nettles,' but the irritations of thoughts, and what by 'thorns,' but the piercings of sins? Nettles therefore and thorns spring up in the houses of Babylon, because in the disorder of a reprobate mind there arise longings of thoughts which exasperate, and sinful deeds which wound. But they who act thus have others also more wicked than themselves as their defenders. Whence he there fitly subjoined immediately, And the bramble in the fortresses…