'Once for All' in the Bible

knowing that Christ being raised from the dead dieth no more; death hath no more power over Him: for as He died, He died once for all on account of sin;

For in that he has died, he has died to sin once for all; but in that he lives, he lives to God.

Do not offer any part of your bodies to Sin, in the cause of unrighteousness, but once for all offer yourselves to God (as those who, though once dead, now have Life), and devote every part of your bodies to the cause of righteousness.

I am speaking in [familiar] human terms because of your natural limitations [your spiritual immaturity]. For just as you presented your bodily members as slaves to impurity and to [moral] lawlessness, leading to further lawlessness, so now offer your members [your abilities, your talents] as slaves to righteousness, leading to sanctification [that is, being set apart for God’s purpose].