Revelation 20:14

Then death and the unseen place of departed spirits were thrown into the lake of fire [i.e., after their spirits were reunited with some kind of a body]. This lake of fire is the second death.

1 Corinthians 15:26

The last enemy that will be abolished is death.

Revelation 20:6

The person who shares in this first resurrection is blessed and holy [i.e., for being so dedicated to God]. The second death does not have power over these people, but they will be priests of God and of Christ, and will rule with Him for the thousand years.

Revelation 19:20

But the beast was captured, along with the false prophet [See 16:13], who performed [supernatural] signs in his presence. [He had performed these signs] to deceive those who had received the mark of the beast and those who worshiped his statue. [See 13:15-16]. The beast and the false prophet were both thrown alive into the lake of fire that burns with sulphur.

Revelation 21:8

But the place for cowards, and unbelievers, and disgusting people [i.e., because of their terrible sins], and murderers, and sexually immoral people, and sorcerers, and idolaters, and all liars, will be the lake that burns with fire and sulphur. This is the second death."

1 Corinthians 15:53

For this [body] that can decay must be clothed with [a body] which cannot decay. And this [body] that can die must be clothed with [a body] which cannot die.

Revelation 1:18

and the Living One. I was dead, and see, I am [now] alive forever and ever! And I possess the keys of death and of the unseen place of departed spirits.

Revelation 20:10

And the devil who [had] deceived them was thrown into the lake of fire, [burning] with sulphur, where the beast and the false prophet also are. [See 19:20]. And [there] these [enemies of God] will be tortured day and night forever and ever.

Revelation 20:13

The ocean gave up the dead [bodies] that were in it; and death and the unseen place of departed spirits [also] gave up the dead [bodies and spirits] that were in them. And every person was judged according to his deeds.

Revelation 20:15

And if any person's [name] was not found recorded in the book of life, he was thrown into the lake of fire.

Revelation 21:4

And He will wipe away all the tears from their eyes, and there will not be death anymore, or mourning, or crying, or pain anymore, for these old things have passed away."

Treasury of Scripture Knowledge

Summary

And death and hell were cast into the lake of fire. This is the second death.

General references

Bible References

This

Revelation 20:6
The person who shares in this first resurrection is blessed and holy [i.e., for being so dedicated to God]. The second death does not have power over these people, but they will be priests of God and of Christ, and will rule with Him for the thousand years.
Revelation 21:8
But the place for cowards, and unbelievers, and disgusting people [i.e., because of their terrible sins], and murderers, and sexually immoral people, and sorcerers, and idolaters, and all liars, will be the lake that burns with fire and sulphur. This is the second death."

General references

1 Corinthians 15:26
The last enemy that will be abolished is death.
Galatians 6:5
For each person should shoulder the responsibility of his own work load.