Gregory the Dialogist

Is it not for thy wickedness that is great, and thine iniquities that are infinite? Observe how from a deadened heart he came to idle words, and from idle words in the heinousness of lying he blazed out into insults. For these are the descents of increasing sin, that the tongue when not restrained should never there where it has fallen lie still, but be always descending to what is worse; but these things that are subjoined, because they are very plain taken after the history, do not need to be set forth after the letter. …

Morals on the Book of Job, Book XVI ↗

Thomas Aquinas

Then, since Job had said that the opinions of those who had said that his house had perished like "the tents of the wicked" (21:28) were unjust, Eliphaz intends to show that his opinion is right when he says, "Is it not because of your great malice and your infinite iniquities?", as if to say: God accuses you by afflicting punishments, not because of fear, but because of the love of justice, to punish your sins. …

Commentary on Job ↗