According to the biblical fairy tale, there is no such thing as an Eternal Hell.
When people die they go to one of three places: death, the sea, or hell. All three places are temporary and everyone makes bail on Judgment Day. Death and hell are tossed into the lake of fire. The sea ceases to exist. If a person's name is not written in the Book of Life he might get tossed into the lake of fire but he will not go back to hell.
The kicker is that not all people who we consider to be evil will get tossed into the lake of fire. Lots of "dogs, sorcerers and sexually immoral and murderers and idolaters, and liars will be spared and be on the same planet at the golden cube called New Jerusalem but they won't be able to enter it. They will spend eternity outside of its walls, looking up at the 1,500 mile-sided golden cube that's enclosed by a wall over 200 feet tall. Revelation 21:27; Revelation 22:15.
The eternal hell is part of the Islamic religion and is not part of the biblical religion. Since most people never read the Bible they are clueless as to what it really says.