269. And there was a rainbow round about the throne in aspect like unto an emerald. That this signifies the appearance of Divine truth in the heavens surrounding the Lord is evident from the signification of a rainbow in aspect like unto an emerald, as denoting the appearance of Divine truth in its circumference; for a rainbow round about the throne signifies Divine truth around it, and in aspect signifies appearance. The reason why the appearance of the rainbow was like that of an emerald, is that it indicated the Last Judgment, for the colour of this stone is green, and green signifies truth obscured. Divine truth in its splendour appears either of a sky-colour, or of various colours disposed in beautiful order, as those of the rainbow; but when it is obscured it appears of the colour of an emerald. The heaven which is called the former heaven was that on which judgment was to be executed, and which was about to perish (see Apoc. 21:1) which caused the obscurity. This is why mention is made of a rainbow, and its aspect like that of an emerald. The reason why the rainbow signifies Divine truth in the heavens in its order, and thence in its beauty, is that there are infinite varieties of truth from good in the heavens; and when they are represented by colours, they present the appearance of a beautiful rainbow. This is why the rainbow was made a sign of the covenant after the flood (Genesis 9:12-17). (That there are infinite varieties in the heavens may be seen in the work, Heaven and Hell 56, 405, 418, 486, and in the small work, The Last Judgment 13; and in Arcana Coelestia 684, 690, 3744, 5598, 7236, 7833, 7836, 9002. That colours in heaven appear from the light there, and that they are its modifications and variegations, n. 1042, 1043, 1053, 1624, 3993, 4530, 4742, 4922; and that the colours appear various according to the varieties of the states of truth from good, and thence of intelligence and wisdom, n. 4530, 4677, 4922, 9466. That rainbows appear in heaven, and whence and what they are, n. 1042, 1043, 1623, 1624, 1625.)

7236. 'According to their armies' means in accordance with the genera and species of good within truths. This is clear from the meaning of 'an army' as the truths that constitute faith, dealt with in 3448. But forms of good in the spiritual Church are essentially nothing other than truths, since truths are called forms of good when people lead their lives in accordance with those truths. When therefore the word 'army' is used to refer to those within the spiritual Church who have been regenerated, forms of the good of truth or forms of good within truths are meant. The reason why it says that the children of Israel were to be led out 'according to their armies' is that it is speaking about the time when they will come out of Egypt - in the internal sense when they will come out of conflicts with falsities, thus after they have performed spiritual military service. The proper way to understand the command that they were to be led out 'according to their armies' is that they were to be distinguished in keeping with forms of good within truths, thus were to be divided into groups according to different kinds of good. And this was done in order that they might represent the Lord's kingdom in the heavens. There all have been divided up and allotted a place in the Grand Man in accordance with both the genus and the species of each one's good.

[2] The fact that all in heaven are divided up in accordance with their different kinds of good shows how manifold and how varied good is; it is so varied that good is never the same with one person as it is with another. Indeed if millions of people went on being multiplied forever, one person's good would still not be like another's, just as one person's face is not like another's; and in heaven furthermore good is what shapes angels' faces. The reason for the unending variety is that every form has distinct and varied constituent parts; for if two were exactly alike they could not be two but a single unit. This also explains why in the natural order no one thing ever exists which is like another in every respect.

[3] What makes good so varied is truth; when this is joined to good it gives the good specific character. One reason why truth is so manifold and varied that it can make good so greatly varied is that truths are countless, and interior truths take on a different form from exterior ones. Another reason is that false impressions gained by the outward senses attach themselves, and also false ideas that are products of evil desires. Since therefore truths are so countless one can see that when they are joined to good just as many variations are produced, so many that one form of good can never be the same as another. This is plain to anyone who knows that from merely twenty-three letters joined together in different combinations the words contained in all languages can be produced; indeed even if there were thousands of languages, an unending variety of combinations could be produced. So what will be the product of varieties numbering thousands and millions, as truths do? Confirmation of the existence of those varieties is also contained in the proverb in general use in the world that there are as many opinions as there are heads, that is, ideas are as varied as the number of people there are.