Eternal Justification based upon the Suretyship of Christ !
It cant be denied by the adversaries of Truth that Christ was made a Surety for a better Covenant Heb 7:22
By so much was Jesus made a surety of a better testament, which I believe refers to the Everlasting Covenant Heb 13:20
Now the God of peace, that brought again from the dead our Lord Jesus, that great shepherd of the sheep, through the blood of the everlasting
covenant, Now basically a Surety has agreed to take on the debt, liability, payment for another; Now in this a pact is made by the Surety and the Creditor, the Creditor having accepted the Suretyship. Its like a striking of hands, or a hand shake like as here Prov 6:1
My son, if thou be surety for thy friend, if thou hast stricken thy hand with a stranger,
Prov 17:18
A man void of understanding striketh hands, and becometh surety in the presence of his friend.
Now once the Creditor approves of this, those whom should incur a debt, a debt the Creditor knows the debtor cannot pay, by pledge of agreement, the Creditor must look for payment of the debt from the Surety and not the debtor, which discharges the debtor.
And so the debtors have been legally discharged or acquitted, justified from having to undergo any legal condemnation of the law, not to receive any meted out justice. Now lets ask ourselves, when did the Son Of God, Jesus actually become the Surety of an better Covenant ? Was it before the world began, or after. Was it before the Cross ? Whenever it was, that's when the debtors, for whom Christ was made Surety, were Justified in the eyes of the Law, from all condemnation they would occur upon themselves !