“Old self” is dead, having been crucified once-for-all with Christ.
“New self” is the new life we now have in Christ: new heart, new mind, new spirit, and the Holy Spirit.
Saved (made a new creation, through new birth in Christ) once-for-all in Christ’s once-for-all sacrifice and eternal priesthood.
All sin(s) forgiven; full fellowship now; no longer slaves to the reign of Sin (original Sin, Adam’s); now held captive by the reigning Lord of Life.
Forever are we reconciled…this is something we will reckon with daily.
As a people with new hearts/minds under a New Cov’t, we are therefore now bearing a new image (identity) that actually shapes our self awareness as Saints (no longer Sinners, in the NC sense).
Rev 11:17 We give thanks to you, Lord God Almighty, who is and who was, for you have taken your great power and begun to reign.
This alone is reason enough for disciples of Christ to give thanks and take comfort! His power to ultimately change all things and authority to rule over all things is wondrous, indeed.
Unfortunately, how His present reign is manifest is missed or distorted, leaving genuine followers of Christ mistaken and/or confused about their involvement in His kingdom.
Octavius Winslow once wrote:
“As our deepest sorrow flows from a sense of sin, so our deepest joy springs from a sense of its forgiveness…This comfort have all the saints. Your sins, O believer, are forgiven. ‘I have blotted out, as a thick cloud, thy transgressions, and, as a cloud, thy sins,’ says God (Isa. 44:22). You are not called upon to believe that God will pardon, but that He has pardoned you. Forgiveness is a past act; the sense of it written upon the conscience is a present one. ‘For by one offering he hath perfected forever them that are sanctified’ (Heb. 10:14), has forever put away their sins…
“Thus, beloved, God comforts His conscience-troubled people. He loves so to speak to their hearts! Is it any delight to Him to see you carrying your burden of conscious sin day after day and week after week? Ah, no! He has procured the means of your pardon at a great price-nothing less than the sacrifice of His beloved Son- and will not the same love which procured your forgiveness, speak it to your heart?…Is sin your trouble? Does conscious guilt cast you down? Look up, disconsolate soul! There is forgiveness with God. It is in His heart to pardon you.”