The great thing about the doctrine of Penal Substitution is the amount of detail we have on it throughout the Bible. We are not simply told the 'what' but also the 'how,'
What God was doing was reconciling the world to Himself, forgiving the sins of man. How He did it was by laying our sins upon Christ (Isaiah 53:6), transferring the curse upon sinful men and women onto Him (Galatians 3:13), making Christ into the very epitome of sin so that He might drink the cup of God's wrath against sin and sinners instead of us (Psalms 75:8; Matthew 26:42) and that we might become the righteousness of God in Him.
We are also told that He is the Mediator of the New covenant (Hebrews 8:6 etc.), doing whatever is necessary to reconcile men with God, and its Surety or Guarantor (Hebrews 7:22) taking our debts upon Himself and paying them in full that we might go free.
The great book to read on this is The Doctrine of Reconciliation by A.W. Pink (Pietan Publications). It is available on line.
What God was doing was reconciling the world to Himself, forgiving the sins of man. How He did it was by laying our sins upon Christ (Isaiah 53:6), transferring the curse upon sinful men and women onto Him (Galatians 3:13), making Christ into the very epitome of sin so that He might drink the cup of God's wrath against sin and sinners instead of us (Psalms 75:8; Matthew 26:42) and that we might become the righteousness of God in Him.
We are also told that He is the Mediator of the New covenant (Hebrews 8:6 etc.), doing whatever is necessary to reconcile men with God, and its Surety or Guarantor (Hebrews 7:22) taking our debts upon Himself and paying them in full that we might go free.
The great book to read on this is The Doctrine of Reconciliation by A.W. Pink (Pietan Publications). It is available on line.
I thought about that as I was typing the post. Since my view was actually less "progressive" than most iterations of penal substitution taken as "theory" I figured I'd "let it ride".