'Second Death' in the Bible

He that hath an ear, let him hear what the Spirit saith unto the churches. He that overcometh shall receive no injury from the second death.

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

And death and the grave were cast into the lake of fire: this is the second death.

But to those who shrink back through fear, and to the infidels, and to the abominable, and to murderers, and to whoremongers, and to those who use magical incantations, and to idolaters, and to all liars, is their portion [appointed] in the lake which burneth with fire and brimstone; which is the second death.