Luke 13:28

But the twofold punishment of hell is here described, that is, the feeling cold and heat. For weeping is wont to be excited by heat, gnashing of teeth by cold. Or gnashing of teeth betrays the feeling of indignation, that he who repents too late, is too late angry with himself.

Or the teeth will gnash which here delighted in eating, the eyes will weep which here wandered with desire. By each He represents the real resurrection of the wicked.

There will be weeping and gnashing of teeth. Weeping is usually stirred by heat, gnashing of teeth by cold. Where a double hell is shown: that is, of excessive cold, and of intolerable heat. Blessed Job's sentence agrees with this saying: They pass by violently …

There shall be weeping and gnashing of teeth,.... See Gill on Mat 8:

We see in these verses — a remarkable question asked. We are told that a certain man said to Jesus, "Lord, are only a few people going to be saved?" We do not know who this enquirer was. He may have been a self-righteous Jew, trained to believe that there was no hope for the Gentile, and no salvation for any but the children of Abraham. He may have been an idle trifler with religion, who was ever wasting his time on curious and speculative questions. In any case, we must all feel that he asked a question of deep and momentous importance . He who desires to know the number of the saved, in the present time — need only turn to the Bible, and his curiosity will be satisfied. He will read these solemn words in the Sermon on the Mount, "Strait is the gate and narrow is the way which leads unto life — and few there are who find it." (Matthew 7:14.) He has only to look around him, and compare the ways of the many with the Word of God — and he will soon come to the conclusion, if he is an honest man — that the saved are few. It is a dreadful conclusion. Our souls naturally turn away from it. But Scripture and facts alike, combine to shut us up to it. Salvation to the uttermost, is offered to men. All things are ready on God's part. Christ is willing to receive sinners — but sinners are not willing to come to Christ. And hence few are saved. We see, secondly, in these verses — a striking exhortation given. We are told that when our Lord Jesus Christ was asked whether few would be saved, He said, "Strive to enter in at the strait gate." He addressed these words to the whole company of His hearers. He thought it unwise to gratify the curiosity of his questioner by a direct reply. He chose rather to press home on him, and all around him — their own immediate duty. In minding their own souls — they would soon find the question answered.

Abraham, and Isaac, etc. - See on Mat 8:12 (note), where the figures and allusions made use of here are particularly explained.