Isaiah 53:6 - “the LORD has laid on him the iniquity of us all.”
Isaiah 53:12 - “yet he bore the sin of many, and makes intercession for the transgressors.”
Romans 3:25 whom God put forward as a propitiation by his blood, to be received by faith. This was to show God's righteousness, because in his divine forbearance he had passed over former sins.
2 Corinthians 5:21 - “For our sake he made him to be sin who knew no sin, so that in him we might become the righteousness of God.”
Galatians 3:13 - “Christ redeemed us from the curse of the law by becoming a curse for us — for it is written, Cursed is everyone who is hanged on a tree.”
Hebrews 10:1–4 For since the law has but a shadow of the good things to come instead of the true form of these realities, it can never, by the same sacrifices that are continually offered every year, make perfect those who draw near. Otherwise, would they not have ceased to be offered, since the worshipers, having once been cleansed, would no longer have any consciousness of sins? But in these sacrifices there is a reminder of sins every year. For it is impossible for the blood of bulls and goats to take away sins.
Do you hold to penal substitution? Why or why not. No answer is valid without scriptural support for each assertion.