Some Christians believe in annihilationism, that is, that those who do not receive Jesus will not suffer in hell, but will actually cease to exist.
But Matthew 25:46, plain as day, says that people will be punished forever if they are not saved. It would be hard to reconcile annihilationism with these words of Jesus. In his Systematic Theology, Wayne Grudem wrote, “The Bible only needs to say something once for it to be true.”
Eternal punishment in hell is a terrible doctrine, indeed. But if the Bible teaches it, then we must believe it, and hard as this seems, learn to love it in a God-honoring, Christ-exalting, non-vengeful way.