Gregory the Dialogist

For He is not a man, such as I am, that I should answer Him, or that He can be heard with me in Judgment on an equal footing. When we 'contend with another in judgment on an equal footing,' we both learn what is urged against us, and in all we allege we are heard, and in proportion as we apprehend the points openly objected, we reply with boldness to the points propounded. In this way forasmuch as the invisible Judge sees all that we do, it is as if He hears things that we say. …

Morals on the Book of Job, Book IX ↗

Thomas Aquinas

He shows next why no matter how pure he is he cannot defend himself for being convicted as impure by God because of two things in which God excels man. These are the purity of his justice and the authority of his majesty. As to the first, he says, "For he is not a man like myself that I should answer him," as if to say: If any man wants to convict me of impurity, I would be able to resist him, if he should charge me with things he thinks cannot be preserved in man concerning the perfect purity of justice. …

Commentary on Job ↗