Job 16:8 - Matthew Poole's English Annotations on the Holy Bible

Thou hast filled me with wrinkles, by consuming all my fat and flesh. Which is a witness against me; Heb. which is a witness of the reality, and greatness, and just cause of my sorrows. Or, which is become or made a witness, i.e. is produced by my friends as a witness of God's wrath, and of my hypocrisy and impiety. Rising up in me, i.e. which is in me. Or, rising up against me, as witnesses use to rise and stand up against a guilty person to accuse him. Beareth witness to my face; as witnesses are to accuse a person to his face, openly and evidently, so as any that look on my face may plainly discern it. But this clause may be rendered thus, my leanness in my face (i.e. which appears in my face, and causeth the wrinkles which are visible there) riseth up against me, and beareth witness, as before.