Unknown Author
Job 16:19ESV·author unknown

Even now, behold, my witness is in heaven, and he who testifies for me is on high.

Matthew Henry Presbyterian @wholebiblehenry

Job's condition was very deplorable; but had he nothing to support him, nothing to comfort him? Yes, and he here tells us what it was. I. He had the testimony of his conscience for him that he had walked uprightly, and had never allowed himself in any gross sin.

Commenting on Job 16:17-22

John Gill Reformed Baptist @doctorgill

My friends scorn me,.... Not that they scoffed at his afflictions and calamities, and at his diseases and disorders, that would have been very brutish and inhuman, but at his words, the arguments and reasons he made use of to defend himself with, see Job 12:4; but mine eye poureth out tears unto God; in great plenty, because of his very great sorrows and distresses...

Jamieson-Fausset-Brown Reformed @jfbcommentary

Also now--Even now, when I am so greatly misunderstood on earth, God in heaven is sensible of my innocence. record--Hebrew, "in the high places"; Hebrew, "my witness." Amidst all his impatience, Job still trusts in God.