“But I know my living Redeemer, and He will stand on the dust at last.”
When Job says this, he has not yet met the Lord. He has heard of the Lord God “by report” but he has yet to “see God with his own eyes.” Even so, Job knows that God lives; and he trusts that one day God “will stand on the dust at last.” Job understands God will overcome sin in mankind and so defeat death, the wage of sin.
What Job doesn’t know is the fullness of God; he doesn’t yet have a personal, face-to-face relationship with the living Redeemer. He has yet to “abhor himself and repent in dust and ashes.” At this point, he has only heard; he has yet to see!