Gregory the Dialogist

I have sinned; what shall I do unto Thee, O Thou Preserver of men? Observe how he confesses the ill that he has done, but the good that he should present to God in compensation, he no where can find, in that all virtue whatever of human practice is without power to wash out the guilt of sin, except His mercifulness in sparing foster it, and not His justice in judging press hard upon it. …

Morals on the Book of Job, Book VIII ↗

Thomas Aquinas

Someone could object that Job was unworthy to be spared by God because his sins merit that he be afflicted even more. This follows also from the opinion of Eliphaz who thought that he was scourged because of his sins. So he continues, "I have sinned," as if to say: Given that I have sinned and because of this merited to be afflicted, still there remains a reason why you should spare me. He adds to this three reasons why God should spare him which make reference to the frailty of man. …

Commentary on Job ↗