'Second Death' in the Bible

He that hath an ear, let him hear what, the Spirit, is saying unto the assemblies. He that overcometh, shall in nowise be injured by reason of the second death.

Happy and holy, is he that hath part in the first resurrection: upon these, the second death, hath no authority; but they shall be priests of God and of the Christ, and shall reign with him for the thousand years.

And, death and hades, were cast into the lake of fire. This, is, the second death - the lake of fire.

But, as for the timid, and disbelieving, and abominable, and murderers, and fornicators, and sorcerers, and idolaters, and all the false, their part, is in the lake that burneth with fire and brimstone, - which is the second death.