Hell

There's some common misconceptions about Hell, I'm gonna break some of them down, or at least try to.

First, some people believe that Hell will end when Jesus comes back. This is not true. Hell will live on as Heaven will. When Jesus was talking to His disciples and He said that whoever believes in Him will spend Eternity with Him in Heaven, but whoever does not believe in Him will spend eternity in Hell. You can't mean eternity going on beyond time itself for one thing and then use it until the world ends in another. It's the same word. By that logic, Heaven will also cease to exist and we wouldn't spend eternity with Him, but instead infinity.
If He meant until the world ends, he probably would've used a word like infinity, which only goes until the world ends, not eternity which goes beyond time itself. Hell goes beyond time itself. So, for all eternity, there will be weeping and gnashing of teeth for all who don't believe.

Second, some people believe that God won't send people to Hell because they don't know how a loving God could send someone to Hell. Well, when it was made, it was never intended for humans; it was intended for Satan and his followers. But, when we sinned we became evil and unrighteous. A Just and Righteous God could not allow sinners in Heaven which, is why He sent Jesus to cleanse us of our sins.

Thirdly, some people don't even believe Hell exist! There's way too many people saying there is no Hell. Jesus mentions it way too often to just disregard it. Here are just a few references: Matthew 5:22: But I say to you that everyone who is angry with his brother will be liable to judgment; whoever insults his brother will be liable to the council; and whoever says, ‘You fool!’ will be liable to the hell of fire;    Matthew 5:29: If your right eye causes you to sin, tear it out and throw it away. For it is better that you lose one of your members than that your whole body be thrown into hell;     Matthew 10:28: 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 23:15: Woe to you, scribes and Pharisees, hypocrites! For you travel across sea and land to make a single proselyte, and when he becomes a proselyte, you make him twice as much a child of hell as yourselves;
Matthew 23:33: You serpents, you brood of vipers, how are you to escape being sentenced to hell?
Revelation 19:20: And the beast was captured, and with it the false prophet who in its presence had done the signs by which he deceived those who had received the mark of the beast and those who worshiped its image. These two were thrown alive into the lake of fire that burns with sulfur.
Revelation 20:10: 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.
(And many more! Do you really think, if it didn't exist, Jesus would keep warning and teaching about weeping and gnashing of teeth in Hell?)