'Lake of Fire' in the Bible

"The person who has an ear should listen to what the Holy Spirit is saying to the churches. The person who has victory [in the Christian life] will not be harmed at all by the second death [i.e., the lake of fire. See 21:8].

And the beast was taken, and with him the false prophet that wrought miracles before him, with which he deceived them that had received the mark of the beast, and them that worshipped his image. These both were cast alive into a lake of fire burning with brimstone.

And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night for ever and ever.

And death and hell were cast into the lake of fire. This is the second death.

And whosoever was not found written in the book of life was cast into 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.'