Grace is the new wine, yet we are old wineskins, with the Old Man Adam that wants to do wrong, to do things our way, to do all things and not trust God for anything.
Job, like many Christians and all religious types, attempt to live a righteous life in their own efforts.
Yet everything that we have and do is based on God's grace in our lives, which means that we bring nothing in our efforts, and we receive everything because of all that Jesus has done.
We do not need more help with being good.
We need life -- and with this life we receive all things.
Jesus spoke about the Old and New Covenants in terms of old and new wineskins:
"22And no man putteth new wine into old bottles: else the new wine doth burst the bottles, and the wine is spilled, and the bottles will be marred: but new wine must be put into new bottles." (Mark 2: 22)
There is no mixing the Old and New. Either we receive from God by grace through faith, or we work for it. There is no mixing.
For this reason, Paul would write to the Galatians:
"Howbeit then, when ye knew not God, ye did service unto them which by nature are no gods. 9But now, after that ye have known God, or rather are known of God, how turn ye again to the weak and beggarly elements, whereunto ye desire again to be in bondage? (Galatians 4: 8-9)
Regarding the Old and New Covenants, typified by Abraham's wives Sarah and Hagar, Paul then writes:
"30Nevertheless what saith the scripture? Cast out the bondwoman and her son: for the son of the bondwoman shall not be heir with the son of the freewoman.
31So then, brethren, we are not children of the bondwoman, but of the free." (Galatians 4: 30-31)
There is no earning anything from God.
There is all receiving, because everything is in Christ, and there is nothing more that we can do but believe on Him! (John 6: 29)
When Job saw that he was nothing, and that God is everything, he not only heart about Him, but saw Him fully.
With that, he went from being and old wineskin trying to hold new wine, to a renewed man walking by faith, receiving God's grace in every way.
See yourself in the New Wine -- Christ Jesus -- who has transformed you into a new wineskin, one who can receive His gifts of righteousness and grace forever more.