'Second Death' in the Bible

Let him who has ears hear what the Spirit is saying to the Churches. He who conquers shall suffer no hurt from the Second Death."

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.

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;

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.'