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.

2180. 'And took a young bull, tender and good' means a celestial-natural which the rational took to itself in order that it might join itself to perception from the Divine. This is clear from the meaning of 'a young bull' or 'a son of an ox' in the Word as natural good. And because the subject is the Lord's Rational, it is called 'tender' from the celestial-spiritual, which is truth grounded in good, and 'good' from the celestial itself, which is good itself. Within the genuine rational there is both the affection for truth and the affection for good, but that which is first and foremost there is the affection for truth, as shown already in 2072. This explains why 'tender' is mentioned before 'good'; but even so, as is quite usual in the Word, both are mentioned on account of the marriage of truth and good which is referred to above in 2173.

[2] That 'a young bull' or 'a son of an ox' means the celestial-natural, or what amounts to the same, natural good, becomes especially clear from the sacrifices, which were the principal representatives in the worship of the Hebrew Church and after this of the Jewish Church. Their sacrifices were made either from the herd or from the flock, thus from animals of various kinds that were clean, such as oxen, young bulls, he-goats, sheep, rams, she-goats, kids, and lambs, besides doves and fledgling pigeons. All of these creatures meant the internal features of worship, that is, celestial and spiritual things, 2165, 2177, those from the herd meaning celestial-natural, those from the flock celestial-rational. Because both of these - natural things and rational things - are more and more interior and are various, so many genera and so many species of these creatures were therefore employed in sacrifices. This fact becomes clear also from its being laid down as to which creatures were to be offered in burnt offerings and also which in every kind of sacrifice - the daily sacrifices; those offered on sabbaths and at festivals; those made as free-will, eucharistic, or votive offerings; and those offered in purifications, cleansings, and also in inaugurations. Which creatures were to be used, and how many, in each kind of sacrifice is mentioned explicitly. This would never have been done unless each one had had some specific meaning, as is quite evident from those places where the sacrifices are the subject, as in Chapter 29 of Exodus; Chapters 1, 3, 4, 9, 16, and 23 of Leviticus; and Chapters 7, 8, 15, and 29 of Numbers. But this is not the place to explain what each one meant. The situation is similar in the Prophets where those animals are mentioned, from which it may become clear that young bulls meant celestial-natural things.

[3] That none but heavenly things were meant becomes clear also from the cherubim seen by Ezekiel and from the living creatures before the throne which were seen by John. Regarding the cherubim the prophet says,

The likeness of their faces was the face of a man (homo); and they four had the face of a lion on the right side; and they four had the face of an ox on the left side; and they four had the face of an eagle. Ezekiel 1:10.

Regarding the four living creatures before the throne John says,

Around the throne were four living creatures - the first living creature was like a lion, the second living creature like a young bull, the third living creature had a face like a man (homo), the fourth living creature was like a flying eagle - saying, Holy, holy, holy is the Lord God Almighty, who was, and who is, and who is to come. Revelation 4:7-8.

Anyone may see that holy things were represented by the cherubim and these living creatures, thus also by the oxen and young bulls in the sacrifices. The same applies in the prophecy of Moses concerning Joseph,

Let it come upon the head of Joseph and upon the crown of the head of the Nazirite among his brothers. The firstborn of his ox has honour, and his horns are the horns of a unicorn; with these he will thrust the peoples together, to the ends of the earth. Deuteronomy 33:16-17.

These words are not intelligible to anyone unless he knows what ox, unicorn, horns, and many other things mean in the internal sense.

[4] As for sacrifices in general they were indeed commanded to the Israelites through Moses. But the Most Ancient Church which existed before the Flood never knew anything at all about sacrifices, nor did it ever enter their minds to worship the Lord by the slaughtering of animals. The Ancient Church which existed after the Flood knew nothing about it either. Representatives did indeed exist there, but not sacrifices. These were first introduced in the subsequent Church called the Hebrew Church, and from there they spread to the gentile nations, and even to Abraham, Isaac, and Jacob, and so to Jacob's descendants. The fact that the gentile nations had sacrificial worship has been shown in 1343, and the fact that Jacob's descendants also had such worship before they left Egypt, thus before sacrifices were commanded through Moses on Mount Sinai, becomes clear from Exodus 5:3; 10:25, 27; 18:12; 24:4-5.

[5] This is especially clear from their idolatrous worship in front of the golden calf, regarding which the following is said in Moses,

Aaron built an altar in front of the calf, and Aaron made a proclamation and said, Tomorrow there will be a feast to Jehovah. And they rose up early the next morning and presented burnt offerings and brought peace offerings. And the people sat down to eat and drink, and rose up to play. Exodus 32:5-6.

This happened while Moses was on Mount Sinai, and so before the command came to them regarding the altar and the sacrifices. That command came to them for the reason that sacrificial worship among them had been turned, as it had among the gentiles, into idolatrous worship, from which they could not be drawn away because they looked upon it as-the chief holy thing. Once something has been implanted in people from their earliest years as being holy, the more so if received from their fathers, and thus is inrooted, the Lord in no way breaks it - provided it is not contrary to order itself - but bends it. This was the reason for its being laid down that the sacrificial system should be established, such as one reads in the books of Moses.

[6] The fact that sacrifices were by no means acceptable to Jehovah, and so were merely permitted and tolerated for the reason just stated, is quite evident in the Prophets. Concerning them the following is said in Jeremiah,

Thus said Jehovah Zebaoth, the God of Israel, Add your burnt offerings on to your sacrifices, and eat the flesh. I did not speak with your fathers and I did not command them on the day I brought them out of the land of Egypt on the matters of burnt offering and sacrifice. But this matter I commanded them, saying, Obey My voice, and I will be your God. Jeremiah 7:21-23.

In David,

O Jehovah, sacrifice and offering You have not desired; burnt offering and sin-sacrifices You have not sought. I have delighted to do Your will, O my God. Psalms 40:6, 8.

In the same author,

You do not delight in sacrifice that I should give it; burnt offering You do not accept. The sacrifices of God are a contrite spirit. Psalms 51:16-17.

In the same author,

I will not take any young bull from your house, nor he-goats from your folds. Sacrifice to God confession. Psalms 50:9, 14; 107:21-22; 116:17; Deuteronomy 23:18.

In Hosea,

I desire mercy and not sacrifice, and the knowledge of God rather than burnt offerings. Hosea 6:6.

Samuel said to Saul,

Has Jehovah great delight in burnt offerings and sacrifices? Behold, to be submissive is better than sacrifice, to be obedient than the fat of rams. - 1 Samuel 15:22.

In Micah,

With what shall I come before Jehovah and bow myself to God on high? Shall I come before Him with burnt offerings, with calves a year old? Will Jehovah be pleased with thousands of rams, with tens of thousands of rivers of oil? He has shown you, O man, what is good; and what does Jehovah require of you but to carry out judgement, and to love mercy, and to humble yourself by walking with your God? Micah 6:6-8.

[7] From these quotations it is now evident that sacrifices were not commanded but permitted, and also that in sacrifices nothing else was regarded except that which was internal, and that it was that which was internal that was pleasing, not that which was external. For this reason also the Lord abolished them, as was also foretold through Daniel in the following words when he was speaking about the Lord's Coming,

In the middle of the week He will cause the sacrifice and the offering to cease. Daniel 9:27.

See what has been stated about sacrifices in Volume One, in 922, 923, 1128, 1823. As for 'the young bull' which Abraham made ready or prepared for the three men, the meaning is similar to that of the same animals when used in sacrifices. That it had a similar meaning becomes clear also from the fact that he told Sarah to take three measures of fine flour. Regarding the fine flour that went with the offering of a young bull the following is said in Moses - referring to when they were to come into the land,

When you make ready a young bull for a burnt offering or a sacrifice in the declaring of a vow, or for peace offerings to Jehovah, you shall bring with the young bull a minchah of three tenths of fine flour mixed with oil. Numbers 15:8-9.

Here similarly the number 'three' appears, though three 'tenths' here but three 'measures' in Abraham's instruction to Sarah. But only two tenths went with the offering of a ram, one tenth with that of a lamb, Numbers 15:4-6.