Gregory the Dialogist

If I covered my transgression as man, and did hide mine iniquity in my bosom. But who would not account himself to be a holy man in the midst of such heights of his virtues? Who would not be in some measure tempted by his mere merits alone being so many in number, so that if at any time as being but man he went wrong, he would not have his transgression made known to men; and would account it as trivial if he did any thing wrong in lesser things; and would rather prefer to cover his offence by silence than disclose it by the voice of …

Morals on the Book of Job, Book XXII ↗

Thomas Aquinas

He further shows the perfection of his virtue by excluding undue anxiety. Men usually hide a crime because of the fear of embarrassment, and they sometimes do this against justice, either by denying it, which he excludes from himself saying, "If I hid like a man," as men often do, "my sin," by denying it unjustly; they may also excuse it, or even cover it over with some crafty devices, and so he then says, "and if I have hidden in my bosom," by hidden pretence, "my sin," when I am bound to confess it.

Commentary on Job ↗