It's because Jesus spoke so frequently about hell that the church should take the concept seriously.
R. C. SproulIf you donโt delight in the fact that your Father is holy, holy, holy, then you are spiritually dead. You may be in a church. You may go to a Christian school. But if there is no delight in your soul for the holiness of God, you donโt know God. You donโt love God. Youโre out of touch with God. Youโre asleep to his character.
R. C. Sproul