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).

(Verweise: 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])

63. The Holy City, New Jerusalem, means that new church in respect to its doctrine. That is why it was seen descending out of heaven from God, for a doctrine of genuine truth comes from no other source than the Lord through heaven.

Because the church in respect to its doctrine is meant by the Holy City, New Jerusalem, therefore it is said to be prepared as a bride, adorned for her husband (Revelation 21:2), and after that we are told:

One of the seven angels...came to me and spoke with me, saying, “Come, I will show you the bride, the Lamb’s wife.” And he carried me away in the spirit onto a...high mountain, and showed me the great city, the Holy Jerusalem, descending out of heaven from God. (Revelation 21:9-10)

People know that a bride and a wife mean the church when the Lord is meant by the bridegroom and husband. The church is a bride when it wishes to receive the Lord, but a wife when it does receive Him.

It is apparent that the Lord is meant by the husband there, for the bride is called the Lamb’s wife.