Charles Ellicott Commentary Job 31:28

"This also were an iniquity to be punished by the judges; For I should have denied the God that is above." — Job 31:28 (ASV)

By the judge. —Rather, perhaps, by my judge, i.e., God; unless, indeed, there is any reference to the Mosaic law (Deuteronomy 17:2–7), which does not seem likely.