Revelation 20:13-17

And the sea gave up the dead who were in it, and Death and Hades gave up the dead who were in them; and they were judged, each 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 if anyone’s name was not found written in the book of life, he was thrown into the lake of fire.