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.

(सन्दर्भ: 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)

2982. 'In the land of Canaan' means which was a united whole in the Lord's kingdom. This is clear from the representation of 'the land of Canaan' as the Lord's kingdom, dealt with in 1413, 1437, 1585, 1607. With the Lord's Churches the position is that in ancient times many existed simultaneously. These differed from one another, as Churches do today, on matters of doctrine, but they still made one in that they acknowledged love to the Lord and charity towards the neighbour as the chief and most essential thing. And so to them matters of doctrine existed not so much to guide their thought as to direct their lives. And when in every single respect love to the Lord and charity towards the neighbour, that is, the good of life, is the essential thing, then no matter how many Churches there are they all make one, and each is a united whole in the Lord's kingdom. The same is also true of heaven. Although there are countless communities there, and each one is distinct and separate from the rest, they nevertheless all constitute one heaven because every one is moved by love to the Lord and charity towards the neighbour.

[2] But the situation is altogether different in the case of Churches which say that faith is the essential thing of the Church, for they imagine that if they know this and think it, they are saved irrespective of whatever kind of life they lead. When this is the situation many Churches existing simultaneously do not make one Church; they are not even Churches. The good of faith is what makes the Church, that is, the life of love and charity in accordance with matters of faith make it. It is for the sake of life that matters of doctrine exist. This anyone may know, for why does any doctrine exist if not for some end in view? And what else is that end but life, that is, that a person may become as such doctrine teaches? Those Churches do indeed speak of saving faith as being trust, but that trust cannot possibly exist except within the good of life. Without the latter there is no receptivity, and when there is no receptivity there is no trust, except on occasions when the mind or body is sick and the desires that belong to self-love and love of the world are dormant. But with those who are leading an evil life, when this crisis is over or takes a different turn, that spurious trust disappears altogether; for trust can exist even with those who are evil. But if a person wishes to know what kind of trust he has, let him examine his affections and ends in view, and also the kind of life his actions reveal.

9212. 'If you ever take your companion's clothing as a pledge' means if factual knowledge of truths is dispersed by illusions that are a product of sensory impressions. This is clear from the meaning of 'taking as a pledge' as receiving a token for goods that are supplied, for 'a pledge' is a token for goods that are being lent. When spiritual things are understood instead of these, supplying goods means giving instruction in truths, and the token or pledge in this instance means truth on the level of the senses. For 'the clothing' here which is given as a pledge means the lowest level of the natural, which is that of the senses. Since illusions abound on this level and illusions wipe out truths, 'taking your companion's clothing as a pledge' means the dispersing of truths by illusions that are a product of sensory impressions. The fact that these things are meant is clear from the whole train of thought in the internal sense.

[2] In general 'clothing' means everything that clothes another, and so whatever is relatively more external. Consequently the external or natural man is called the clothing in relation to the internal or spiritual man. In a similar way truth is called the clothing in relation to good, because truth clothes good; likewise factual knowledge of truth in relation to the truth of faith which belongs to the internal man. Sensory perception, which constitutes the lowest level of life with a person, is the clothing in relation to factual knowledge of truth.

'Clothes' are lower things that cover higher ones, or what amounts to the same thing, exterior things that cover interior ones, see 2576, 5248. In general they are truths, 4545, 4763, 5319, 5954, 6914, 6917, 9093, factual knowledge of truths, 6918, or truths on the level of the senses, 9158. Sensory perception constitutes the lowest level of life with a person, 4009, 5077, 5125, 5128, 5767, 5774, 6201, 6313, 7442, 7693, and sensory perception is subject to illusions, 5084, 5089, 6201, 6948, 6949, 7442.

[3] The meaning of 'clothes' as truths owes its origin to representatives in the next life. There angels and spirits appear dressed in clothes in keeping with the state of faith or truth that is theirs, and their clothes are varied in keeping with the changes which that state undergoes. Those governed by authentic truth appear dressed in white garments, and those governed by truths springing from good in shining ones. But those governed purely by good, as angels of the inmost heaven are, called celestial angels, appear naked. So it is then that clothes are truths, and that truths are meant in the Word by 'clothes', as may be seen from places referred to above. To these places let the following in the Gospels be added:

[4] In Matthew,

When Jesus was transfigured His face shone like the sun, and His garments became [white] as the light. Matthew 17:2.

'Face' in the Word means the interiors, in particular the affections, 358, 1999, 2434, 3527, 3573, 4066, 4796, 4797, 5102, 5695, 6604, 6848, 6849, and 'God's face' Goodness itself, 222, 223, 5585. 'The sun' means God's love, 2441, 2495, 3636, 3643, 4060, 4321 (end), 4696, 7083, 8644. From this it is evident what the meaning is when it says that the Lord's face shone like the Sun, namely that His interiors were the Good of Divine Love. 'His garments became [white] as the light' means Divine Truth radiating from Him, which also appears in heaven as the light, 1521, 1619-1632, 3195, 3222, 3485, 3636, 3643, 4415, 5400, 8644.

[5] In the same gospel,

When Jesus drew near to Jerusalem they brought the she-ass and the colt and laid their garments on them and set Him on them. But a very great crowd spread their garments on the road, while others were breaking off branches from trees and spreading them on the road. Matthew 21:1, 7-8.

Riding on a she-ass and her colt was a representative sign of the Supreme Judge and King, see 2781, as also is evident from what comes before in verse 5,

Tell the daughter of Zion, Behold, your King is coming to you, meek, seated on a she-ass, and on a colt, the foal of a beast of burden.

It is also evident in Mark 11:1-12; in Luke 19:28-41; in John 12:12-16; and in Zechariah 9:9-10, where it says of the Lord that He would ride on an ass, and on a young ass, a son of she-asses. There He is called a King, and in addition it says that His dominion will be from sea even to sea, and from the River even to the ends of the earth. The fact that the supreme judge rode on a she-ass, and his sons on young asses, see Judges 5:9-10; 10:3-4; 12:14; and that the king rode on a she-mule, and the king's sons on mules, 1 Kings 1:33, 38, 44-45; 2 Samuel 13:29.

[6] When the disciples laid their garments on the she-ass and her colt, it represented the recognition that truths in their entirety were the foundation on which the Lord as supreme Judge and King rested; for the disciples represented the Lord's Church in respect of truths and forms of good, see 2129, 3488, 3858 (end), 6397, and their garments truths themselves, 4545, 4763, 5319, 5954, 6914, 6917, 9093. This same recognition was likewise represented when the crowd spread their garments, also the branches of trees, on the road. Another reason why they spread them on the road was that 'the road' means the truth by means of which a member of the Church is led, see 627, 2333, 3477. And the reason why they also spread the branches of trees was that 'trees' meant perceptions and also cognitions or knowledge of truth and good, 2682, 2722, 2972, 4552, 7692, so that their branches are the truths themselves. Those actions were also performed then because it was customary for the chief persons among the people to lay their garments on supreme judges and kings' she-asses and mules when they rode in pomp on them, and for the people themselves to spread their garments on the road, or the branches of trees instead. For in heaven judgeship consists in Divine Truth derived from Good, and kingship in Divine Truth, 1728, 2015, 2069, 3009, 4581, 4966, 5044, 5068, 6148.

[7] In Luke,

No one adds a piece of a new garment onto an old garment; in doing so he splits the new, and the binding from the new is unsuitable for the old.

Luke 5:36.

The Lord used this comparison to describe the truth of the new Church and the truth of the old Church; for 'garment' means truth. Sewing on one or binding it to the other means destroying both; for the truth of the new Church is interior truth, thus truth for the internal man, whereas the truth of the old Church is exterior truth, thus truth for the external man. The latter kind of truth prevailed in the Jewish Church, for by means of external things this Church represented internal ones, whereas the Church of today has knowledge of the internal truths that were represented then, because the Lord has revealed them. The fact that these truths are not suited to external ones in such a way that they can exist together is what the words used by the Lord serve to mean. From all this also it is evident that 'garment' means the Church's truth.

[8] In John,

Jesus said to Peter, Truly, truly I say to you, When you were a boy you girded your loins and walked where you wished. But when you are old you will stretch out your hands, [and] another will gird your loins and lead you where you do not wish. John 21:18.

No one without knowledge of the internal sense can see what these words imply; plainly, they contain arcana. In the internal sense 'Peter' means the Church's faith, see the Prefaces to Genesis 18, 22, and 3750, 6000, 6073 (end), 6344 (end). Consequently Peter when he was a boy means the nature of the Church's faith as it is initially, and Peter when he would be old means the nature of the Church's faith as it is finally. From this it is evident what 'when you were a boy you girded your loins and walked where you wished' means, namely that the Church's faith as it is initially is faith composed of truth derived from good, thus faith composed of charity towards the neighbour and of love to the Lord. And at this time a member of the Church in doing what is good acts freely, because his actions spring from the Lord. For aspects of the good of love are meant by 'the loins', 3021, 3294, 4280, 4575, 5050-5062, so that 'girding the loins' means clothing good with truths; and living is meant by 'walking', 519, 1794, 8417, 8420, so that 'walking where one wishes' means leading a life that is free. Those people lead a life that is free, or act freely, whose faith springs from love to the Lord and charity towards the neighbour; for they are led by the Lord, 892, 905, 2870-2893, 6325, 9096. 'When you are old you will stretch out your hands, and another will gird your loins and lead you where you do not wish' means that the Church's faith as it is finally will be none at all, at which time falsities that arise from evil springing from self-love and love of the world will take the place of faith and enslave it. This is the arcanum which these words spoken by Lord contain and which can be seen only from their internal sense. All this shows once again the kind of way in which the Lord spoke, namely in such a way that an inner meaning might be present within every detail, to the end that heaven might be joined to the world by means of the Word. For without the Word, that is, without Divine Truth that has been revealed, they are not joined together; and if they are not so joined the human race perishes.