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.

(References: 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

Footnotes:

8364. 'I will not put on you any sickness that I put on the Egyptians' means that they are to be withheld from the evils present among those who uphold separated faith and lead a life of evil. This is clear from the meaning of 'sickness' as evil, dealt with below; from the representation of 'the Egyptians' as those who uphold separated faith and lead a life of evil, dealt with in 7097, 7317, 7926, 8148; and from the meaning of 'not putting on you' - when used in association with 'sickness', which means evil - as withholding from evil. For Jehovah, that is, the Lord, does not take away evil but withholds a person from it and maintains him in good, 929, 1581, 2256, 2406, 4564, 8206. So it is that 'not putting a sickness on them' means that they are to be withheld from evils.

[2] The reason why 'sickness' means evil is that in the internal sense the kinds of things that attack spiritual life are meant. The sicknesses which attack it are evils, and they are called evil desires and cravings; and the components of spiritual life are faith and charity. That life is sick when falsity exists instead of the truth of faith and evil instead of the good of charity, because they lead to the death of that life, which is called spiritual death and is damnation, just as sicknesses lead to the death of natural life. This is why in the internal sense 'sickness' means evil, and 'the sicknesses of the Egyptians' means the evils which those upholding separated faith and leading a life of evil cast themselves into, and which they used to molest the upright. Those evils have been dealt with in what has gone before, where the plagues in Egypt were the subject.

[3] Evils are again meant by 'sicknesses' elsewhere in the Word, as in Moses,

If you keep the commandments and the statutes and the judgements which I am commanding you today, Jehovah will take away all sickness from you, and will not put on you any of the evil diseases of Egypt which you have known, but will lay them on [all] who hate you. Deuteronomy 7:11, 15.

In the same author,

If you will not obey the voice of Jehovah your God, taking care to do all His commandments and His statutes, Jehovah will send on you cursing, confusion, and rebuke in all that you set your hand to do, ¹ until you are destroyed, because of the wickedness of your deeds by which you have forsaken Me. Jehovah will make the pestilence cling to you, until He has consumed you from upon the land. Jehovah will strike you with consumption, and hot fever, and burning fever, and raging fever, and drought, and blight, and mildew, which will pursue you until you perish. Jehovah will strike you with the sores of Egypt, and with hemorrhoids, and the scab, and the itch, so that you cannot be healed. Jehovah will strike you with madness, and blindness, and stupefaction. ² You will be made mad by what your eyes will see ³ . Jehovah will strike you with evil sores on the knees and on the thighs, from which you cannot be healed, from the sole of your foot to the top of your head. He will throw back onto you every disease of Egypt, also every sickness and every plague that is not written in the book of this Law. Jehovah will give you a trembling heart, failing ⁴ of eyes, and distress of soul. Deuteronomy 28:15, 20-22, 27-28, 34-35, 60-61, 65.

All the sicknesses mentioned here mean spiritual sicknesses, which are evils destructive of the life of a will desiring what is good and falsities destructive of the life of an understanding seeing what is true, in short things destructive of spiritual life composed of faith and charity. Natural sicknesses also correspond to such things, for every sickness present among the human race has its origin in spiritual ones, because each exists as a result of sin, 5712, 5726. Each sickness furthermore corresponds to its own evil. The explanation for this is that everything composing a person's life originates in the spiritual world. If therefore his spiritual life is sick, evil spreads from it into his natural life and becomes a sickness there. See what has been stated from experience in 5711-5727 about the correspondence of sicknesses with evils.

[4] The same things are meant by 'sicknesses' elsewhere, as in Moses,

You shall worship Jehovah your God, in order that He may bless your bread and your water; and I will take sickness out of your midst. Exodus 23:25.

In the same author,

If you despise My statutes, and if your soul abhors My judgements, so that you do not do all My commandments, while you make void My covenant, I will appoint terror over you, along with consumption, and burning fever, which will consume the eyes and torment the soul. Leviticus 26:15-16.

'Consumption' stands for the decrease of truth and the increase of falsity, 'burning fever' for the desire for evil. Further still, in Isaiah,

Why will you also defect? ⁵ The whole head [departs] into sickness, and the whole heart is diseased. From the sole of the foot even to the head there is no soundness in it, but wounds, and scars, and recent blows. They are not pressed out, nor bound up, nor softened with oil. Isaiah 1:5-6.

Here nobody can fail to see that 'sickness', 'wounds', 'scars', and 'blows' are used to mean sins. Similarly in Ezekiel,

Woe to the shepherds of Israel! The weak sheep you have not strengthened, the sick you have not healed, and the broken you have not bound up. Ezekiel 34:2, 4.

In David,

My iniquities have gone over my head. My wounds have become putrid, they have rotted away because of my foolishness. For my intestines are full of burning, and there is no soundness in my flesh. Psalms 38:4-7.

[5] Since the disorders and evils of spiritual life are meant by 'sicknesses', the various kinds of disorders and evils of that life are meant by the various kinds of sicknesses. 'Pestilence' means the vastation or laying waste of goodness and truth, see 7102, 7505; and 'leprosy' means the profanation of truth, 6963. In general 'sicknesses' means sins, as may also be seen in Isaiah,

... a man of sorrows, and acquainted with sickness, on account of which as it were men hid their faces from Him. He was despised, so that we did not esteem Him. Nevertheless He has borne our sicknesses and carried our sorrows, and through His wounds healing has been given to us. Isaiah 53:3-5.

This refers to the Lord.

[6] Since sicknesses represented the unrighteous ways and the evils of spiritual life the sicknesses which the Lord healed have as their meaning deliverance from the different kinds of evil and falsity that were molesting the Church and human race and that would have brought spiritual death. Divine miracles are distinguishable from other miracles by the fact that they involve and have regard to states of the Church and the heavenly kingdom; and this is why the Lord's miracles were primarily healing of sicknesses. These miracles are meant by the Lord's words addressed to the disciples sent by John,

Tell John the things which you hear and see: the blind see and the lame walk; lepers are cleansed and the deaf hear; the dead rise again and the poor hear the gospel. Matthew 11:4-5.

This is why it says so many times that the Lord healed every sickness and every disease among the people, Matthew 4:23; 9:35; 14:14, 35-36; Luke 4:40; 5:15; 6:17; 7:21; Mark 1:32-34; 3:10.

Footnotes: