Adam Clarke on Job 33:23

V. The Messengers

If there be a messenger with him, an interpreter, etc. - The Messengers of righteousness; this is a Fifth method, אם יש עליו מלאך מליץ im yesh alaiv malach melits, "If there be over him an interpreting or mediatorial angel or messenger." One among a thousand, אחד מני אלף echad minni aleph. "One from the Chief, Head, or Teacher."

To show unto man his uprightness - להגיד לאדם ישרו lehaggid leadam yoshro, "to manifest or cause to be declared to man his righteousness:" to show unto Adam - men in general, the descendants of the first man - his purity and holiness; to convince him of sin, righteousness, and judgment, that he may be prepared for the discovery of what is next to be exhibited.