No Christ the redeemer of the whole world Jn 1:29Then not all men are redeemed. Only the ones who accept it. That is an oxymoron.
How about this. The scope of the atonement was great enough and was extended to all mankind no matter where they lived, who they were, there nationality, of ethnicity, age or anything else, but it was intended for only those who believe. In which case those who believe must be already known by God and predestined by Him to believe, before Christ died for them. "All whom the Father has given Me will come to Me." "Many are called (hear the gospel) but few are chosen."
Those who receive it by faith and baptism are justified freely by God’s grace
And those who sanctify their lives by union with Christ Jn 15:4 remaining in grace and endure to the end shall be saved Mk 13:13 Matt 24:13
Many are called the faithful, few are chosen are the priests / apostles
God gives all men sufficient grace for salvation
Redemption:
The redemption was accomplished by Christ with no participation on our part. All mankind is redeemed.
Lk 2:11 Jn 1:29 rm 5:8 1 pet 1:21-23
Justification:
then if we accept His redemption we are justified, born again by faith and baptism. Mk 16:16 Jn 3:5 acts 2:38 8:36 Titus 3:5 1 pet 3:21
Sanctification:
Members of Christ and his church by grace we practice good works (prayer, alms, fasting, virtues charity, suffering other sacraments etc. until death. Phil 1:29
At the hour of death separation from the grace of God by apostasy / rejection of Christ or failing to repent of serious sin a man is lost in damnation! Or
Salvation:
Is for those who are faithful and die in the grace of God united to Christ and in his saints at death enter into eternal salvation! Mk 13:13 Matt 24:13
Titus 2:14
Who gave himself for us, that he might redeem us from all iniquity, (redemption) and purify unto himself a peculiar people, (justification / baptism notice purify / wash) Jn 3:5 zealous of good works. (Sanctification) Matt 24:13 endures to the end Shall be saved.
(Salvation)
Glorification:
Suffering required for glorification with Christ!
Romans 8:17
And if children, then heirs; heirs of God, and joint-heirs with Christ; if so be that we suffer with him, that we may be also glorified together.
2 Timothy 2:12
If we suffer, we shall also reign with him: if we deny him, he also will deny us:
Justification and salvation are not the same rom 5:9 Much more then, being now justified by his blood, we shall be saved from wrath through him.
Thanks