Revelation 20:14

Then Death and the Lord of the Place of Death were hurled into the lake of fire. This is the Second Death--the lake of fire;

1 Corinthians 15:26

The last enemy to be overthrown is death;

Revelation 20:6

Blessed and holy will he be who shares in that First Resurrection. The second Death has no power over them; but they will be priests of God, and the Christ, and they will reign with him for the thousand years.

Revelation 19:20

The Beast was captured, and with him was taken the false Prophet, who performed the marvels before the eyes of the Beast, with which he deceived those who had received the brand of the Beast and those who worshiped his image. Alive, they were thrown, both of them, into the fiery lake 'of burning sulphur.'

Revelation 21:8

But as for cowards, unbelievers, the degraded, murderers, the impure, sorcerers, idolaters, and all liars--their place will be in the burning lake of fire and sulphur. That is the Second Death.'

1 Corinthians 15:53

For this perishable body of ours must put on an imperishable form, and this dying body a deathless form.

Revelation 1:18

the Everliving. I died, and I am alive for ever and ever. And I hold the keys of the Grave and of the Place of the Dead.

Revelation 20:10

and the Devil, their deceiver, was hurled into the lake of fire and sulphur, where the Beast and the false Prophet already were, and they will be tortured day and night for ever and ever.

Revelation 20:13

The sea gave up its dead, and Death and the Lord of the Place of Death gave up their dead; and they were judged, one by one, each according to his actions.

Revelation 20:15

and all whose names 'were not found written in the Book of Life' were hurled into the lake of fire.

Revelation 21:4

and he will wipe away all tears from their eyes. There will be no more death, nor will there be any more grief or crying or pain. The old order has 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
Blessed and holy will he be who shares in that First Resurrection. The second Death has no power over them; but they will be priests of God, and the Christ, and they will reign with him for the thousand years.
Revelation 21:8
But as for cowards, unbelievers, the degraded, murderers, the impure, sorcerers, idolaters, and all liars--their place will be in the burning lake of fire and sulphur. That is the Second Death.'

General references

1 Corinthians 15:26
The last enemy to be overthrown is death;
Galatians 6:5
For every one must bear his own load.