Settle it firmly in your mind that the Lord Jesus Christ Himself has spoken most plainly about the reality and eternity of hell.
The parable of the rich man and Lazarus contains things which should make men tremble. But it does not stand alone. No lips have used so many words to express the awfulness of hell, as the lips of Him who spoke as never man spoke, and who said, “The word which you hear is not Mine, but the Father’s which sent Me” (John 14:24). Hell, hell fire, the damnation of hell, eternal damnation, the resurrection of damnation, everlasting fire, the place of torment, destruction, outer darkness, the worm that never dies, the fire that is not quenched, the place of weeping, wailing and gnashing of teeth, everlasting punishment—these are the words which the Lord Jesus Christ Himself employs. Away with the miserable nonsense which people talk in this day, who tell us that the ministers of the gospel should never speak of hell! They only show their own ignorance, or their own dishonesty, when they talk in such a manner. No person can honestly read the four Gospels and fail to see that they who would follow the example of Christ must speak of hell.
The parable of the rich man and Lazarus contains things which should make men tremble. But it does not stand alone. No lips have used so many words to express the awfulness of hell, as the lips of Him who spoke as never man spoke, and who said, “The word which you hear is not Mine, but the Father’s which sent Me” (John 14:24). Hell, hell fire, the damnation of hell, eternal damnation, the resurrection of damnation, everlasting fire, the place of torment, destruction, outer darkness, the worm that never dies, the fire that is not quenched, the place of weeping, wailing and gnashing of teeth, everlasting punishment—these are the words which the Lord Jesus Christ Himself employs. Away with the miserable nonsense which people talk in this day, who tell us that the ministers of the gospel should never speak of hell! They only show their own ignorance, or their own dishonesty, when they talk in such a manner. No person can honestly read the four Gospels and fail to see that they who would follow the example of Christ must speak of hell.
~ J.C. Ryle
Holiness: Its Nature, Hindrances, Difficulties, and Roots, “A Woman to be Remembered”, [Moscow, ID: Charles Nolan Publishing, 2001], 209, 210.