4 But there is forgiveness with thee, that thou mayest be feared.
It is forgiveness He proposes: and to forgive, we all know, is to let go: to pass by: to remember no more against, and to do this freely, and not because of satisfaction received.
...Seeing him thus, we see a fellow sufferer with us of the death that came by Adam, and therefore one who could righteously suffer on our behalf, as our representative, one who, though without sin himself, was a possessor of the nature that had come righteously under the power of death in the beginning of its history upon the earth.
We can therefore understand how his crucifixion was divinely intended to declare the righteousness of God "for the remission of sins that are past." We can understand how God in him thus "condemned sin in the flesh" (Rom. 8:3), publicly, openly, ritually for all time: and thus established a meeting point for "propitiation through faith in his blood."
God asks men to look to Jesus crucified as the serpent-bitten Israelites looked at the elevated serpent of brass - that is, to look in faith; that is, to realise that our common nature was thus in him condemned; to recognize that they were crucified with him; to partake of that death and burial in baptism; and therefore to admit and confess that they are unworthy of approaching to God as sinners of Adam's race: that in themselves they have no hope, yea, that they are unworthy to live; and that the life that God will permit them to live is by His favour alone which He will extend to them -for Christ's sake," with whom He was well pleased, in whom there was no sin, though involved in the mortality of a sinful race, and whom He raised from the dead because of his righteousness, and gave him power to raise all who should come to God by him.
"God for Christ's sake has forgiven you."
The combined effect of all [the] sacrificial provisions of the law [of Moses] is to give ground of hope to all men who fear God and submit to His appointments. They may be erring and shortcoming, and a trouble to themselves because of their many imperfections: but if they are "humble and contrite of heart", and make confession of their sins in the name of Jesus, in whom all these sacrifices concentre as the end and substance foreshadowed, they may trust to be forgiven.
Law of Moses Ch 25