Paul wrote…
1 Corinthians 15:26
The last enemy that shall be destroyed is death.
One cannot say that death has been “destroyed” if the vast majority of the human race are still existing in a state of death (be it physical or spiritual). For them, death is an ever present reality; death has them firmly in it’s grip. If death is to be truly destroyed, all those existing in a state of death have to be brought to a state of life (both physical and spiritual). In context we see what could be a strong universalist statement…
I Corinthians 15:20-28
20But now is Christ risen from the dead, and become the firstfruits of them that slept.
21For since by man came death, by man came also the resurrection of the dead.
22For as in Adam all die, even so in Christ shall all be made alive.
23But every man in his own order: Christ the firstfruits; afterward they that are Christ’s at his coming.
24Then cometh the end, when he shall have delivered up the kingdom to God, even the Father; when he shall have put down all rule and all authority and power.
25For he must reign, till he hath put all enemies under his feet.
26The last enemy that shall be destroyed is death.
27For he hath put all things under his feet. But when he saith all things are put under him, it is manifest that he is excepted, which did put all things under him.
28And when all things shall be subdued unto him, then shall the Son also himself be subject unto him that put all things under him, that God may be all in all.
I find this passage very interesting, because the implications are very provocative if we take it literally.