@Duran
Save mankind from what?
Scripturally, as far as I understand, there are three aspects of spiritual salvation in the New Testament
Salvation from:
. a. sins Penalty – Ro.6:23, 5:1 called Justification (past, accomplished)
.
b. sins Power – I Cor.1:30, 6:11, Heb13:12 called Sanctification (progressive process)
.
c. sins Presence – Ro. 8:30, I Pe. 5:4 called Glorification (future heavenly hope) I Pe.1:3-4, Col.1:3-5
Will any who lived and died before Jesus died, will any of them be resurrected?
Since Christ died for all, the power of the cross to save sanctify and restore extends back to Adam and future into the next age. So yes, all in their graves will come forth, some to a resurrection of life and some to judgment as Jesus indicated.