Doctrine may be defined as organized truth that informs the way we act and think about the world.

In common usage, "doctrine" is not something that has to be grand or solemn. We all have doctrines about many little things like lawn care, car maintenance, or fixing chili; this kind of doctrine is just the way we do something because we think it is the right way. Often the reasoning behind these doctrines is that it is the way our parents did it, that we read it somewhere, or that it just seems right.

Everyone has a doctrine about how they live their lives in general as well, such as a charitable doctrine of looking out for others, or a selfish doctrine of "me first." Whether or not we have given it much thought, we live in accordance with our doctrine - our way of thinking.

Swedenborg used "doctrine" quite specifically to mean the organized arrangement of spiritual teachings about various aspects of reality. All religions have sacred beliefs, some of them written, like the Bible or the Quran, and some of them oral. From these beliefs they establish doctrine. In many cases organizations of the same religion will emphasize or reject different sets of truths and develop different forms of doctrine. Moreover, different religions will disagree about the validity of the original beliefs. But most would agree that the Truth, with a capital T, comes from some version of God.

The Writings for the New Church tell us that, in the Bible, cities represent doctrine. This was because cities were organized habitations, home ground to many people, places where there was much interchange of ideas and goods between people. They were places that could accommodate differing neighborhoods, and that could be fortified. On a spiritual plane all these things can be said about doctrine. It’s interesting to notice just how often cities are mentioned in the Word, either to be conquered, lived in, or built. Mention of a city comes as early as Genesis 4:17, just after the expulsion from the garden of Eden, where we are told that Cain built a city in the land of Nod and named it after his son, Enoch. Then in Genesis 11, men are not only building the well-known tower of Babel, but also a city of which the tower was a part. There are hundreds of other cities mentioned, and they signify different structures of doctrine.

Finally, in the next to last chapter of the Word (Revelation 20) we are told of the descent from God of the City New Jerusalem, coming down to earth. We in the New Church believe that this City represents a new doctrine, given by the Lord, written down and published by Emanuel Swedenborg in the 1700s, that resolves the false ideas that came into Christianity with the ideas of three persons in God, and with the later belief in salvation by faith alone.

New Christian doctrine holds that there is one God - one Divine Person who is the Lord God Jesus Christ, and that salvation requires a joining of faith and charity (a belief in true ideas, and a love for God and the neighbor).

(参考: Apocalypse Revealed 320, 902; Arcana Coelestia 399, 402, 3364 [2]; Teachings about the Sacred Scripture 54; The Doctrine of the New Jerusalem Regarding the Lord 63; The New Jerusalem and its Heavenly Doctrine 7; True Christian Religion 508 [5])

402. 'A city that was built' means all doctrinal or heretical teaching founded on that heresy. This is clear from the Word wherever the name of any city occurs. In the Word 'city' never means a city but something doctrinal or else something heretical. For angels are totally ignorant of what a city is or what the name of any city is. They never do nor can have any city in mind, for their ideas are of spiritual and celestial things, as shown already. Their perception is solely of what is meant spiritually by cities, and the names of them. For example, by the Holy City, which is also called the Holy Jerusalem, they understand nothing other than the Lord's kingdom in general, or as it exists with each individual who has the Lord's kingdom within him. And the city of Zion or Mount Zion they understand in a similar way, the latter being the celestial degree of faith, the former the spiritual.

[2] And the celestial and spiritual itself is also described by cities, palaces, houses, walls, the foundations of walls, ramparts, gates, bars, and by the temple at the centre, as in Ezekiel 48, and in Revelation 21:15-end. In Revelation 21:2, 10, it is called 'the Holy Jerusalem'; in Jeremiah 31:38 ['the city for Jehovah']; in David, Psalms 46:4, 'the city of God, the holy place of the dwellings of the Most High'; and in Ezekiel 48:35, it is called 'the city, Jehovah is there'. And in Isaiah,

The sons of the foreigner will build up your walls. They will bend down to the soles of your feet, all who disapprove of you, and they will call you the City of Jehovah, the Zion of the Holy One of Israel. Isaiah 60:10, 14.

In Zechariah,

Jerusalem [will be called] the city of truth, and Mount Zion the mountain of holiness. Zechariah 8:3

Here 'city of truth', which is Jerusalem, means the spiritual things of faith, and 'the holy mountain', which is Zion, the celestial things of faith. And whereas the celestial and spiritual things of faith were represented by a city, so all matters of doctrine were meant by the cities of Judah and Israel, each one, when mentioned by name, meaning some specific point of doctrine, though exactly which nobody can know except from the internal sense.

[3] As cities meant matters of doctrine, cities also meant heretical ideas, each one when mentioned by name meaning some specific heretical idea. But at this point solely the consideration that in general a city means doctrinal teaching or else heretical may be established from the following places:

[4] In Isaiah,

On that day there will be five cities in the land of Egypt which speak in the lip of Canaan and swear to Jehovah Zebaoth. One of these will be called the city Heres. Isaiah 19:18.

This refers to man's knowledge of spiritual and celestial things at the time of the Lord's Coming. In the same prophet,

Full of tumults, a tumultuous city, an exultant city. Isaiah 22:1, 2.

This refers to 'the valley of vision', which is delusion. In Jeremiah,

The cities of the south are shut up, with none opening them. Jeremiah 13:10.

This refers to people who are in 'the south', that is, who dwell in the light of truth, but blot it out. In the same prophet,

Jehovah thought to destroy the wall of the daughter of Zion. He causes rampart and wall to mourn; they have languished together. Her gates have sunk into the ground, He has destroyed and broken in pieces her bars. Lamentations 2:8-9.

Here anyone may see that nothing else is meant by 'wall, rampart, gates and bars' than matters of doctrine.

[5] Similarly in Isaiah,

This song will be sung in the land of Judah, Ours is a strong city, salvation will establish walls and a rampart. Open the gates that the righteous nation that keeps faith may enter in. Isaiah 26:1-2.

In the same prophet,

I will exalt You, I will confess Your name. You have made the city into a heap, the fortified city into a ruin; let not a palace of aliens be built of the city for ever. Therefore a strong people will honour You, the city of terrifying nations will fear You. Isaiah 25:1-3.

Nor does this refer to any actual city. In Balaam's prophecy,

Edom will be an inheritance, and out of Jacob one will have dominion, and he will accomplish the destruction of the remnant of the city. Numbers 24:18-19.

Here anyone may see that 'the city' does not mean an actual city. In Isaiah,

The city of hollowness has been broken down, every house has been shut up so that none may enter in. There is an outcry in the streets over the wine. Isaiah 24:10-11.

Here 'city of hollowness' stands for hollowness of doctrine. In this and other places 'streets' means the things that constitute a city, namely falsities or truths. In John,

When the seventh angel poured out his bowl the great city was split into three parts and the cities of the nations fell. Revelation 16:17, 19.

That 'a great city' means something heretical, as do 'the cities of the nations', may be clear to anyone. The explanation is also given in Revelation 17:18 that the great city means the woman whom John saw, 'the woman', as shown already, being a Church of that nature.