'Second Death' in the Bible

He who is having an ear -- let him hear what the Spirit saith to the assemblies: He who is overcoming may not be injured of the second death.

Happy and holy is he who is having part in the first rising again; over these the second death hath not authority, but they shall be priests of God and of the Christ, and shall reign with him a thousand years.

and the death and the hades were cast to the lake of the fire -- this is the second death;

and to fearful, and unstedfast, and abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all the liars, their part is in the lake that is burning with fire and brimstone, which is a second death.'