The Reality of Hell 

And do not fear those who kill the body but cannot kill the soul. Rather fear Him who can destroy both soul and body in hell.

Matthew 10:28

No, I tell you; but unless you repent, you will all likewise perish.

Luke 13:3

For if God did not spare angels when they sinned, but cast them into hell and committed them to chains of gloomy darkness to be kept until the judgment; if He did not spare the ancient world, but preserved Noah, a herald of righteousness, with seven others, when He brought a flood upon the world of the ungodly; if by turning the cities of Sodom and Gomorrah to ashes He condemned them to extinction, making them an example of what is going to happen to the ungodly; and if He rescued righteous Lot, greatly distressed by the sensual conduct of the wicked (for as that righteous man lived among them day after day, he was tormenting his righteous soul over their lawless deeds that he saw and heard); then the LORD knows how to rescue the godly from trials, and to keep the unrighteous under punishment until the day of judgment, and especially those who indulge in the lust of defiling passion and despise authority.

2 Peter 2:4-10a

And they marched up over the broad plain of the earth and surrounded the camp of the saints and the beloved city, but fire came down from heaven and consumed them, and the devil who had deceived them was thrown into the lake of fire and sulfur where the beast and the false prophet were, and they will be tormented day and night forever and ever. Then I saw a great white throne and him who was seated on it. From his presence earth and sky fled away, and no place was found for them. And I saw the dead, great and small, standing before the throne, and books were opened. Then another book was opened, which is the book of life. And the dead were judged by what was written in the books, according to what they had done. And the sea gave up the dead who were in it, Death and Hades gave up the dead who were in them, and they were judged, each one of them, according to what they had done. Then Death and Hades were thrown into the lake of fire. This is the second death, the lake of fire. And if anyone's name was not found written in the book of life, he was thrown into the lake of fire.

Revelation 20:9-15

Unless noted all scripture references are taken from the English Standard Version (ESV) of the Bible.