Here are some excerpts from Swedenborg's "Arcana Coelestia" that help explain the inner meaning of this chapter:

AC 2312. In this chapter, in the internal sense, by "Lot" is described the state of the Spiritual Church which is in the good of charity but in external worship: how in course of time it declines.

AC 2313. The First State of that church: that they are in the good of charity and acknowledge the Lord, and that from Him they are confirmed in good (verses 1 to 3); and are saved (verse 12). The Second State: that with them evils begin to act against goods, but they are powerfully withheld from evils and kept in goods by the Lord (verses 14 to 16). Their weakness is described (verse 17); that they are saved (verse 19). The Third State: that they no longer think and act from the affection of good, but from the affection of truth (verses 18 to 20); and that they are saved (verse 23). The Fourth State: that the affection of truth perishes, which is Lot’s wife becoming a pillar of salt (verse 26). The Fifth State: that an impure good, or a good of falsity, succeeds, which is Lot in the cave of the mountain (verse 30). The Sixth State: that even this good is still more adulterated and falsified (verses 31 to 33); and the truth likewise (verses 34, 35). That therefrom there is conceived and born a certain semblance of a church whose good, so called, is "Moab," and whose truth, also so called, is the "son of Ammon" (verses 36 to 38).

AC 2314. Further: in the internal sense, by the "inhabitants of Sodom" is described the state of those within the same church who are against the good of charity, and how in course of time evil and falsity increase with them until they have nothing but evil and falsity.

AC 2315. Their First State: that they are against the good of charity and against the Lord (verses 4, 5). Their Second State: that although informed concerning the good of charity and concerning the delights of its affections which they should enjoy, they are obstinate and reject good (verses 6 to 8). That they also endeavor to destroy the very good of charity itself, but that the Lord protects it (verses 9, 10). The Third State: that at last they become such that they cannot even see truth and good, still less that truth leads to good (verse 11). That they are possessed by evil and falsity, so that they cannot but perish (verse 13). The Fourth State: their destruction (verse 24); and that all goods and truths are separated from them (verse 25).

AC 2316. That the good are separated from the evil, and that the good are saved through the Lord‘s Human made Divine (verses 27-29).

1072. And was drunken. That this signifies that he thereby fell into errors, is evident from the signification of a “drunkard” in the Word. They are called “drunkards” who believe nothing but what they apprehend, and for this reason search into the mysteries of faith. And because this is done by means of sensuous things, either of memory or of philosophy, man being what he is, cannot but fall thereby into errors. For man’s thought is merely earthly, corporeal, and material, because it is from earthly, corporeal, and material things, which cling constantly to it, and in which the ideas of his thought are based and terminated. To think and reason therefore from these concerning Divine things, is to bring oneself into errors and perversions; and it is as impossible to procure faith in this way as for a camel to go through the eye of a needle. The error and insanity from this source are called in the Word “drunkenness.” Indeed the souls or spirits who in the other life reason about the truths of faith and against them, become like drunken men and act like them; concerning whom, of the Lord’s Divine mercy hereafter.

[2] Spirits are perfectly well distinguished from each other, as to whether they are in the faith of charity or not. Those who are in the faith of charity do not reason about the truths of faith, but say that the thing is so, and also as far as possible confirm it by things of sense and of memory, and by the analysis of reason; but as soon as anything obscure comes in their way the truth of which they do not perceive, they defer it, and never suffer such a thing to bring them into doubt, saying that there are but very few things they can apprehend, and therefore to think that anything is not true because they do not apprehend it, would be madness. These are they who are in charity. But-on the contrary-those who are not in the faith of charity desire merely to reason whether a thing be so, and to know how it is, saying that unless they can know how it is, they cannot believe it to be so. From this alone they are known at once as being in no faith, a mark of which is that they not only doubt concerning all things, but also deny in their hearts; and when they are instructed how the case is, they still cling to their disbelief and start all kinds of objections, and never acquiesce, were it to eternity. Those who thus persist in their contumacy heap errors upon errors.

[3] These, or such as these, are they who are called in the Word “drunken with wine or strong drink.” As in Isaiah:

These err through wine, and through strong drink are gone astray; the priest and the prophet err through strong drink, they are swallowed up of wine, they are gone astray through strong drink; they err in vision; all tables are full of vomit and filthiness. Whom will He teach knowledge? and whom will He make to understand the report? Them that are weaned from the milk, and drawn from the breasts (Isaiah 28:7-9).

That such are meant here is evident.

Again:

How say ye unto Pharaoh, I am the son of the wise, the son of ancient kings? where then are thy wise men? and let them tell thee now; Jehovah hath mingled a spirit of perversities in the midst of her; and they have caused Egypt to go astray in every work thereof, as a drunken man goeth astray in his vomit (Isaiah 19:11-12, 14).

A “drunken man” here denotes those who desire, from memory-knowledges [scientifica], to investigate spiritual and celestial things. “Egypt” signifies these knowledges, and therefore calls itself the “son of the wise.”

In Jeremiah:

Drink ye, and be drunken, and spue, and fall, and rise no more (Jeremiah 25:27), meaning falsities.

[4] In David:

They reel to and fro, and stagger like a drunken man, and all their wisdom is swallowed up (Psalms 107:27).

In Isaiah:

Come ye, I will take wine, and we will be drunken with strong drink; and there shall be tomorrow, as this day, great abundance (Isaiah 56:12), said of what is contrary to the truths of faith.

In Jeremiah:

Every bottle shall be filled with wine; all the inhabitants of Jerusalem, with drunkenness (Jeremiah 13:12-13); “wine” denotes faith; “drunkenness” errors.

In Joel:

Awake, ye drunkards, and weep; and howl, all ye drinkers of wine, because of the new wine, for it is cut off from your mouth; for a nation is come up upon My land; he hath laid My vine waste (Joel 1:5-7), said of the church when vastated as to the truths of faith.

In John:

Babylon hath made all the nations to drink of the wine of the wrath of her fornication. They that dwell in the earth were made drunken with the wine of her fornication (Revelation 14:8, 10; 16:19; 17:2; 18:3; 19:15).

The “wine of fornication” means adulterated truths of faith, of which “drunkenness” is predicated.

So in Jeremiah:

Babylon hath been a golden cup in the hand of Jehovah, that made all the earth drunken; the nations have drunk of her wine, therefore the nations are mad (Jeremiah 51:7).

[5] Because “drunkenness” signified insanities about the truths of faith, it also became representative and was forbidden to Aaron and his sons, thus:

Drink no wine nor strong drink, thou, nor thy sons with thee, when ye go into the tent of meeting, that ye die not; that ye may put a difference between the holy and the profane, and between the unclean and the clean (Leviticus 10:8-9).

Those who believe nothing but what they apprehend by things of sense and memory [scientifica] are also called “heroes to drink.”

In Isaiah:

Woe unto them that are wise in their own eyes, and intelligent before their own faces! Woe unto them that are heroes to drink wine, and men of strength to mingle strong drink! (Isaiah 5:21-22).

They are called “wise in their own eyes and intelligent before their own faces” because those who reason against the truths of faith think themselves wiser than others.

[6] But those who care nothing for the Word and the truths of faith, and thus are not willing to know anything about faith, denying its first principles, are called “drunken without wine.”

In Isaiah:

They are drunken, but not with wine; they stagger, but not with strong drink; for Jehovah hath poured out upon you the spirit of deep sleep, and hath closed your eyes (Isaiah 29:9-10).

That such is their quality is evident from what goes before and what follows, in that Prophet. Such “drunken men” think themselves more wide awake than others, but they are in deep sleep. That the Ancient Church in the beginning was such as is described in this verse, especially those who were of the stock of the Most Ancient Church, is evident from what has been said before (n. 788).