Yet, Christ in bearing our sin and His soul dying in our place is a substution of a kind. Isaiah 53:6, Isaiah 53:10, Isaiah 53:12.
Give me a moment, brother. Let's reason together.
Here are the verses you offer:
Isaiah 53:6 All of us like sheep have gone astray,
Each of us has turned to his own way;
But the Lord has caused the iniquity of us all
To fall on Him.
Isaiah 53:10 But the Lord was pleased
To crush Him, putting Him to grief;
If He would render Himself as a guilt offering,
He will see His offspring,
He will prolong His days,
And the good pleasure of the Lord will prosper in His hand.
Isaiah 53:12 Therefore, I will allot Him a portion with the great,
And He will divide the booty with the strong;
Because He poured out Himself to death,
And was numbered with the transgressors;
Yet He Himself bore the sin of many,
And interceded for the transgressors.
Note what is NOT said.
Nowhere is it said that God punished Christ instead of us.
Nowhere is it said Christ died instead of us.
Nowhere does it speak of soul death, or spiritual death.
Nowhere does it say Christ experienced God's wrath.
Where does all of that stuff come from since obviously not the Bible?