I'm not a big believer in the "post a verse, answer the question" posting style, and I certainly don't claim that the above totally answers the question, but there's some verses fwiw.
Consulting the Scriptures is a good thing, we can't have good theology without it.
But he [was] wounded for our transgressions, [he was] bruised for our iniquities: the chastisement of our peace [was] upon him; and with his stripes we are healed.
For this is my blood
of the new testament, which is shed for many for the remission of sins
Even as the Son of man came not to be ministered unto, but to minister, and to give his life a ransom for many.
The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world.
Being justified freely by his grace through the redemption that is in Christ Jesus:
Whom God hath set forth [to be] a propitiation through faith in his blood, to declare his righteousness for the remission of sins that are past, through the forbearance of God;
And for this cause he is the mediator of the new testament, that by means of death, for the redemption of the transgressions [that were] under the first testament, they which are called might receive the promise of eternal inheritance.
For where a testament [is], there must also of necessity be the death of the testator.
For a testament [is] of force after men are dead: otherwise it is of no strength at all while the testator liveth.
Whereupon neither the first [testament] was dedicated without blood.
For when Moses had spoken every precept to all the people according to the law, he took the blood of calves and of goats, with water, and scarlet wool, and hyssop, and sprinkled both the book, and all the people,
Saying, This [is] the blood of the testament which God hath enjoined unto you.
Moreover he sprinkled with blood both the tabernacle, and all the vessels of the ministry.
And almost all things are by the law purged with blood; and without shedding of blood is no remission
Such a thought was never found in ancient Alexandrian fathers. I don't think a sin can be infinite, and I don't think Christ was on the cross for God's wrath; the judicial view is quite dry and produces some wrong arguments (such as the fact that God REQUIRES the punishment, or that we ROBBED God's glory and honor)
I believe that the Old Testament emphasizes that the forgiveness of sin requires sacrifice and that the New Testament presents Christ as the final sacrifice, the lamb of God that takes away the sins of the world. That does not have to mean, however, that this is the appeasement of a vengeful God.