452. And out of their mouths came fire, smoke, and brimstone. This symbolically means that interiorly regarded, their thoughts and discourses contained nothing else, and issuing from them was nothing but a love of self and the world, which is a characteristic trait of the will, a conceit in their own intelligence, which is a characteristic trait of the intellect, and the lusts attendant on evil and falsity, which are a characteristic trait flowing from them both.

Out of their mouths means from their thoughts and discourses. Fire symbolizes a love of self and the world, which is a characteristic trait of the will (nos. 450, 468, 494). Smoke symbolizes a conceit in one's own intelligence, which is a characteristic trait of the intellect, emanating from the love of self and the world like smoke from a fire (no. 422). And brimstone symbolizes the lusts attendant on evil and falsity, which are a characteristic trait flowing from them both.

This is not, however, apparent from these people's discourses in public in the world. But it is clearly apparent to angels in heaven. Consequently we say that their thoughts and discourses, interiorly regarded, are of this character.

Fire symbolizes hellish love, and brimstone the lusts flowing from that love through a conceit in one's own intelligence, in the following places:

I will rain down on him... fire and brimstone. (Ezekiel 38:22)

Upon the wicked (Jehovah) will rain... fire and brimstone... (Psalms 11:6)

...the day of Jehovah's vengeance... Its streams shall be turned into pitch, and its dust into brimstone...; its smoke shall ascend forever. (Isaiah 34:8-10)

On the day that Lot went out of Sodom it rained fire and brimstone... Even so will it be in the day the Son of Man is revealed. (Luke 17:29-30. Cf. Genesis 19:24)

If anyone worships the beast and his image..., he shall be tormented with fire and brimstone... (Revelation 14:9.10)

The beast, the false prophet, and the devil were cast into the lake of fire and brimstone (Revelation 19:20; 20:10; 21:8).

The breath of Jehovah, like a stream of brimstone, shall kindle (the pyre). (Isaiah 30:33)

The whole land is brimstone, salt, and burning; it shall not be sown, nor shall it sprout..., like the overthrow of Sodom and Gomorrah... (Deuteronomy 29:22-23)

Brimstone is scattered on the habitation (of the wicked). (Job 18:15)

In the ancient world cities were nearly nations unto themselves – they existed within walls, with their own laws and customs, generally centered on the common purpose of trade. This is not as much the case in the modern world, but we still tend to divide ourselves city by city in terms of sports teams, accents, music and culture, and still tend to generalize the character of people from other cities. It follows, then, that in the Bible cities represent various doctrines – collections of inter-related ideas about spiritual reality. Such doctrines can be based on anything from the Lord’s true teachings – the New Jerusalem seen by John in Revelation – to the falsity and heresy of Sodom and various cities obliterated by the people of Israel at God’s command. On the most personal level, a city can also represent the natural mind of one person – which makes sense since we each to some extent have our own doctrine and our own set of ideas and beliefs.