Also, 1st Peter 2:19-24 clearly has this chapter from Isaiah in mind when he writes:
19 For this is thankworthy, if for conscience towards God, a man endure sorrows, suffering wrongfully.
20 For what glory is it, if committing sin, and being buffeted for it, you endure? But if doing well you suffer patiently; this is thankworthy before God.
21 For unto this are you called: because Christ also suffered for us, leaving you an example that you should follow his steps.
22 Who did no sin, neither was guile found in his mouth.
23 Who, when he was reviled, did not revile: when he suffered, he threatened not: but delivered himself to him that judged him unjustly.
24 Who his own self bore our sins in his body upon the tree: that we, being dead to sins, should live to justice: by whose stripes you were healed.
So, rather than selectively citing a few verses to make a point, I offer the whole context of both Isaiah 53 and 1st Peter 2. These passages do not indicate that Christ suffered the Father’s wrath but rather that He suffered persecution at the hands of wicked men in a meritorious way with true charity. 1st Peter 2 is not talking about Psub atonement but rather, the true and holy example of suffering Christ gave us.
In regards to 1st Peter 2:24, I want to point out a few things. First, given the context of the whole chapter, verse 24 illustrates the fact that Our Lord, though blameless, nevertheless offered the atoning sacrifice on the cross for our sins. However, (as this excellent article explains:
NICK'S CATHOLIC BLOG: The Biblical teaching on "bearing sin" - More problems with Penal Substitution) the doctrine of Psub atonement with the dual imputations of our sins onto Christ and then His righteousness onto us is clearly not indicated by Peter in this verse. The context, I say once more, shows this to be true, given that it deals with the meritorious suffering of our Lord out of love for us, having solidarity with us as true God and true man.
Also, you brought up 2nd Cor. 5:21. This article offers some insightful commentary on the reading of the passage you suggest:
NICK'S CATHOLIC BLOG: The third most important passage in Protestantism (2 Corinthians 5:21) Keep in mind that several translations of Scripture translate the word ‘sin’ as ‘sin offering’. Also, the early Fathers, namely Augustine, did not read this verse with the later lens of John Calvin but saw that the phrase ‘made sin’ really was drawing on the aspect of being ‘made a sin sacrifice’.
Yet, you do not believe that all people will be freed from the slavery of sin and saved as a result.
That’s right.
we believe that His death is truly salvific and not merely meritorious.
And I would agree. I don’t see them as being opposed to one another. We believe that Christ’s death is superabundant for the sins of the whole world (see 1st John 2:2, 1st Timothy 2:4, 2nd Peter 3:9 for examples). His death is objectively of infinite value. However, the fruits and merits of His death must be applied
subjectively to each individual person.