1 Corinthians 15:26

but now has been manifested by the appearing of our Savior Christ Jesus, who abolished death and brought life and immortality to light through the gospel,

And the sea gave up the dead which were in it, and death and Hades gave up the dead which were in them, and they were judged, every one of them according to their deeds.

Then death and Hades were thrown into the lake of fire. This is the second death, the lake of fire.

and He will wipe away every tear from their eyes; and there will no longer be any death; there will no longer be any mourning, or crying, or pain. The first things passed away.”