Parallel
Job 9:20
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
If I justify myself, mine own mouth shall condemn me: if I say, I am perfect, it shall also prove me perverse.
Even if I were righteous, my mouth would condemn me; if I were blameless, it would declare me guilty (note: Or He would declare me guilty).