Here are a few passages that support the idea that Christ redeemed us rather than served as a substitute dying instead of us:
Christ redeemed us from the curse of the Law, having become a curse for us (Galatians 3:13)
In Him we have redemption through His blood, the forgiveness of our trespasses, according to the riches of His grace which He lavished on us. (Ephesians 1:7–8)
knowing that you were not redeemed with perishable things like silver or gold from your futile way of life inherited from your forefathers, but with precious blood, as of a lamb unblemished and spotless, the blood of Christ. (1 Peter 1:18–19)
who gave Himself for us to redeem us from every lawless deed, and to purify for Himself a people for His own possession, zealous for good deeds. (Titus 2:14)
He has sent redemption to His people;
He has ordained His covenant forever;
Holy and awesome is His name. (Psalm 111:9)
Based on these (and several more) passages I believe Christ redeemed us, purchased us with His blood, rather than substituted Himself for us.
Some may say "substitution" is close enough, but I disagree. A purchase, although a type of exchange, is not a substitution. You purchase lunch. But your money is not a substitution for the food, and the food is not a substitution for the money. It is a type of exchange but far from substitution.
So we know that Christ redeemed us. But did He substitute Himself for us?
@Ben1445 what passages have you found that state Christ substituted Himself for us as opposed to redeeming us?
Christ redeemed us from the curse of the Law, having become a curse for us (Galatians 3:13)
In Him we have redemption through His blood, the forgiveness of our trespasses, according to the riches of His grace which He lavished on us. (Ephesians 1:7–8)
knowing that you were not redeemed with perishable things like silver or gold from your futile way of life inherited from your forefathers, but with precious blood, as of a lamb unblemished and spotless, the blood of Christ. (1 Peter 1:18–19)
who gave Himself for us to redeem us from every lawless deed, and to purify for Himself a people for His own possession, zealous for good deeds. (Titus 2:14)
He has sent redemption to His people;
He has ordained His covenant forever;
Holy and awesome is His name. (Psalm 111:9)
Based on these (and several more) passages I believe Christ redeemed us, purchased us with His blood, rather than substituted Himself for us.
Some may say "substitution" is close enough, but I disagree. A purchase, although a type of exchange, is not a substitution. You purchase lunch. But your money is not a substitution for the food, and the food is not a substitution for the money. It is a type of exchange but far from substitution.
So we know that Christ redeemed us. But did He substitute Himself for us?
@Ben1445 what passages have you found that state Christ substituted Himself for us as opposed to redeeming us?