The concept of a "church" in the Writings is both complex and beautifully organic, linked with teachings on the nature of the Lord and the resulting nature of mankind.

The Writings say that the Lord, in His essence - His actual substance - is perfect, infinite love, a love that powered creation, that is the ultimate source of reality, and that sustains reality constantly. That love is expressed in form as perfect, infinite wisdom, which gave form to creation and gives form to reality.

Deep stuff! You can read more about that elsewhere, but what matters here is that all of creation, from the smallest elements to the whole of the universe, reflects that same structure. It's present in nature itself, powered by the heat (love) and light (wisdom) of the sun. It's present in the essential forms of life, with plants (which are rooted; which change little; which are unfeeling; which are powered by light) representing elements of wisdom and animals (warm, feeling, mobile, ever-changing, powered by heat) representing forms of love. It's present in the near-universal division into male (wisdom) and female (love) aspects of plants and animals alike.

That structure is also in each of us. In common language we might call these our hearts and our minds - what we want and what we think. The Writings commonly talk of them as good (love; what we want in our hearts) and truth (wisdom; what we know in our minds) or as will (heart) and understanding (mind). Not only do these elements define us, they are also key to our spiritual fates. We can use them to accept the Lord's love, come into the good of life and ultimately go to heaven. We can also use them to reject the Lord's love and trot off to hell.

And there are further layers. The Writings say that all human societies are in human form, with functions analogous to the human body. This is true from small groups like families to large companies to entire nations and ultimately to both the entire human race in this world and the entirety of heaven in the next.

Among the most important human societies are, naturally, churches. Since the concept of a "church" is based on the human form, though, churches as referred to in the Writings can take many forms. At one end of the scale, any one person who has true ideas of right and wrong and lives by them is a church himself or herself. At the other end of the scale, all those in the whole world who believe in love of the neighbor – and act from that belief – collectively make up one church.

Many other varieties lie between those two extremes, but most references to "church" in the Writings mean the community of those who have the Word, know the Lord, and follow His commandments. These people have access to the best possible truth and deepest possible understanding about the nature of the Lord and what He wants from us.

Such a church plays a vital role: The Lord works through it to get ideas about being good into people's minds and the desire to be good into the inner recesses of their hearts, reaching far beyond that church itself to touch everyone in the world. In fact, the Writings say there is in essence a marriage between the Lord and the church, with the church in the role of the bride and wife, producing true ideas and good desires the way a wife produces children.

To protect this function, the Lord has made sure that throughout history (and a good bit of prehistory) there has always been a church filling this role.

The first of these was the Most Ancient Church, represented by Adam; it was inspired by love of the Lord. The second was the Ancient Church, represented by Noah; it was inspired by love of the neighbor and knowledge of the Lord. The third was the Israelitish Church, which had no interior love of good but preserved ideas of the Lord. The fourth was the primitive Christian church, which had a new, more direct understanding based on the Lord's teachings. The fifth, according to the Writings, is to be based on the deeper understanding offered through the Writings and their explanations of the Bible.

There is much more that could be said, but we'll just emphasize one other point:

We as individuals are who we are based on what we love, not what we know. We will go to heaven or to hell based on what we love, not what we know. Knowing, thinking and seeking truth are important things, but their purpose is to shape, guide and serve our loves; love is ultimately what matters. The Writings make it abundantly and repeatedly clear that it is the same with churches: They are ultimately based on love, not knowledge, on their determination to serve the neighbor, not their external forms of worship. And if churches share that common purpose of serving the neighbor then they are in essence one, with doctrinal variations being of little consequence.

(Verweise: Apocalypse Revealed 533; Arcana Coelestia 407, 768, 1799 [3-4], 2048, 2853 [2-3], 2910, 2982, 3310, 3773, 3963 [2], 4292, 4672, 4723, 5826 [2-3], 6637, 6648, 8152, 9256 [4-5], 9276 [2]; Conjugial Love 116; Heaven and Hell 57; The Word 8; The Doctrine of the New Jerusalem Regarding the Sacred Scripture 99, 104)

57. We can say the same of the church as we have of heaven, since the church is the Lord's heaven on earth. It also has many components, and yet each is called a church and is a church to the extent that the qualities of love and faith rule within it. In it, the Lord forms a single whole out of the varied elements, and therefore makes a single church out of many churches. ¹

Much the same can be said of the individual member of the church as has been said about the church in general, namely that the church is within and not outside, and that anyone is a church in whom the Lord is present in the qualities of love and faith. ²

Much the same can be said of the individual who has the church within as has been said about the angel who has heaven within, that such an individual is a church in least form as the angel is a heaven in least form. Even more, we can say that the individual who has the church within is a heaven just as much as an angel is, for we have been created to enter heaven and become angels. So anyone who has the quality of goodness from the Lord is an angel-person. ³

It is worth noting what we have in common with angels and what we possess that they lack. We have in common with angels the fact that our deeper levels are formed in the image of heaven and that we also become images of heaven to the extent that we participate in the qualities of love and faith. What we have that angels lack is that our more outward levels are formed in the image of this world; and that to the extent that we are engaged in what is good, the world within us is subordinated to heaven and serves it; ⁴ and that then the Lord is present with us on both levels as he is in his heaven. He is actually present on both levels in his divine order, for God is order. ⁵

Fußnoten:

10156. 'Who brought them out of the land of Egypt' means salvation from hell by the Lord. This is clear from the meaning of 'being brought out of the land of Egypt' as being delivered from hell, dealt with in 8866, 9197, thus being saved. 'The land of Egypt' means hell because that land in its true and proper sense means the natural level and the factual knowledge there; and 'being brought out of' the natural man and the factual knowledge there and being raised to the level of the spiritual man, to intelligence and wisdom there, also constitutes being brought out of hell. For a person is born natural, but becomes spiritual through regeneration; and if he does not become spiritual he is in hell. The knowledge which the natural man, that is, a person who has not been regenerated, possesses dwells in the light of the world, whereas the intelligence which the spiritual man, that is, a person who has been regenerated, possesses dwells in the light of heaven. And as long as a person sees things solely in the light of the world he is in hell; but when he sees them at the same time in the light of heaven he is in heaven.

[2] But people who possess no more than natural knowledge and as a consequence do not see things in any light other than the light of the world can have no belief at all in the things that belong to heaven. Furthermore if they wish to investigate these things with the light they see by, called natural illumination, they encounter a kind of thick darkness which blinds them and blots out everything heavenly. For that in the mind which appears to be thick darkness is in reality such. This explains why a merely natural man, however much he thinks himself to be more enlightened than others, at heart rejects Divine and heavenly realities. It is also the reason why so many learned people are made brainless by their knowledge; for more of them than of simple people refuse to accept the things that constitute the faith of the Church and of heaven. It is different with those who allow themselves to be raised by the Lord to the light of heaven. These are first raised above the factual knowledge which the natural man possesses, and then in the light of heaven they behold the things within their natural man, which are called known facts, and clearly distinguish them, choosing those that make sense and are consistent, and rejecting or setting aside those that make no sense and are inconsistent.

[3] In short, the situation is that as long as a person is merely natural his interiors, which behold things in the light of heaven, are closed, and his exteriors, which behold things in the light of the world, are open. At this time the person looks downwards, that is, to the world and towards self; for everything composing his will and thought inclines in that direction. And the direction in which a person looks is also that in which his heart, that is, his will and his love, is turned. But when a person becomes spiritual his interiors, which behold things in the light of heaven, are opened, and then the person looks upwards, which is brought about through his being raised up by the Lord, so that he looks to heaven and towards the Lord. In this direction also everything that composes his will and his thought - thus his heart, that is, his love - is raised.

[4] For the human being has been created in such a way that his internal man should conform to an image of heaven, and his external man to an image of the world, 6057, 9279, to the end that heaven and the world might be brought together in the human being. Thus through him the Lord would flow from heaven into the world and govern it, with each individual person in particular and with all in general, and in this way would join the two together and thereby cause the likeness of heaven to exist in the world as well. When however a person is interested only in the world heaven with him has been closed; but when he allows himself to be raised by the Lord heaven with him is opened and the world becomes subordinate to it. And when this happens hell is separated and removed from him, at which point the person knows what good is and what evil is, but not before. This is what is called 'the image of God' with a person, Genesis 1:26-27.

[5] These matters have been stated in order that people may know what the spiritual man is and what the natural man is, and that the merely natural man, if he is not made spiritual by the Lord, is an embodiment of hell, consequently that they may know why hell is meant by 'Egypt', when yet the natural level and the factual knowledge there are meant by it.

'Egypt' means factual knowledge, see the places referred to in 9340.

It therefore means the natural level, see those referred to in 9391.

It also means hell, 8866, 9197.