Those Christ died for !
Those Christ died for , though for a time while in nature they do not realize it will never be condemned for their sins because Christ died for them 1 cor 15:
3For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures;
rom 4:
25Who was delivered for our offences, and was raised again for our justification.
When Christ died for their sins and paid in full the sin curse of all their iniquities.
And when Christ was raised again after having all our guilt laid upon His Shoulders, being raised from the dead, this made known that His death was effective.
He is now seated as their conqueror of death, and forerunner at God's Right Hand, and while He is there, He intercedes for and in behalf of all for whom He died, not for the whole Human race without exception, but for those given to Him by His Father, and His intercession for them with God is on the basis of His Shed Blood Matt 26:
28For this is my blood of the new testament, which is shed for many for the remission of sins.
The intercession of Christ for all those He died for produces Effective intervention, ensuring that they turn to God !
Rom 8:
31What shall we then say to these things? If God be for us, who can be against us?
32He that spared not his own Son, but delivered him up for us all, how shall he not with him also freely give us all things?
33Who shall lay any thing to the charge of God's elect? It is God that justifieth.
34Who is he that condemneth? It is Christ that died, yea rather, that is risen again, who is even at the right hand of God, who also maketh intercession for us.
The word for intercession in the greek is in the present tense, meaning that Christ is continually entreating the Father for all whom The Father gave Him to die for.
Its a travesty to even think for one second that the Intercessory of the Glorified Jesus Christ on behalf of all He died and rose again, can not but meet with a positive and successful outcome.
Thats what Isa means here Isa 53:
10Yet it pleased the LORD to bruise him; he hath put him to grief: when thou shalt make his soul an offering for sin, he shall see his seed, he shall prolong his days, and the pleasure of the LORD shall prosper in his hand.
The Prolonging of His Days speaks to His resurrection from the dead and ascending to the right hand of God, and His Making Intercession for those He died, and as a result, the Pleasure of the Lord shall prosper in His Hand.
If anyone Christ died for perish in their sins, then The Pleasure of the Lord did not prosper in His Hand, neither was His intercession effective in sending intervention in the Lives for whom He died and God wanted saved..