Redeems those He died for from the Prison of Unbelief !3
So because His Blood alone paid the Redemptive Price, all for whom the Blood was shed for, must be as a matter of Justice be set free from, liberated fro, released from all the consequences of sin, which unbelief is one of those consequences, hence imprisoned in unbelief because of sin !
So Those Christ died for must be brought out of the Prison house of unbelief as an evidence that God has accepted His Blood as their Redemptive Price to free them from the prison of unbelief !
Thats why it is written Isa 61:1
The Spirit of the Lord God is upon me; because the Lord hath anointed me to preach good tidings unto the meek; he hath sent me to bind up the brokenhearted, to proclaim liberty to the captives, and the opening of the prison to them that are bound;
Notice here that it says " The Opening of the Prison to them that are bound" Thats speaking of the Prison of Unbelief, for remember we are by nature concluded to unbelief Rom 11:32
For God hath concluded them all in unbelief, that he might have mercy upon all.
That word concluded means :
I.to shut up together, enclose
A.of a shoal of fishes in a net
II.to shut up on all sides, shut up completely
For God has imprisoned all in disobedience, so that He may have mercy on all.HCSB
The Redemptive Death of Christ opens up the Prison of unbelief.
The word opening is the word pĕqach-qowach and means I.opening (of eyes), wide
Thats opening the eyes of Faith, remember Paul said this Acts 26:18
18 To open their eyes, and to turn them from darkness to light, and from the power of Satan unto God, that they may receive forgiveness of sins, and inheritance among them which are sanctified by faith that is in me.
Faith in Christ is the result of the opening of the eyes !
Lets look at Isa 42:7
7 To open the blind eyes, to bring out the prisoners from the prison, and them that sit in darkness out of the prison house.
Thats describing the giving of the Gift of Faith ! So these verses shows how there is an application of deliverance from the prison of unbelief, in the Redemption that is in Christ Jesus !